We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from. For more information, please review our cookie policy and privacy policy.
By choosing I Accept, you consent to our use of cookies and other tracking technologies.

# 51

Number 51 (fifty-one) is an odd two-digits composite number and natural number following 50 and preceding 52.

## Properties of the number 51

 Nominal 51 Cardinal fifty-one Ordinal 51st Number of digits 2 Sum of digits 6 Product of digits 5 Number parity Odd
Calculation was done in 0.0000369549 seconds

## Prime Factorization of 51

 Prime factorization 3 x 17 Prime factors 3, 17 Number of distinct prime factors ω(n) 2 Total number of prime factors Ω(n) 2 Sum of prime factors 20 Product of prime factors 51
Calculation was done in 0.0000081062 seconds

## Divisors of 51

 List of proper divisors 1, 3, 17 List of all dividers 1, 3, 17, 51 Number of divisors d(n) 4 Sum of all divisors σ(n) 72 Aliquot sum 21 51 is a deficient number , since it is larger than the sum of its proper divisors (21). Its deficiency is 30.
Calculation was done in 0.0000228882 seconds

## Prime numbers

 Is 51 a prime number? No Is 51 a semiprime number? Yes Is 51 a Chen prime number? No Is 51 a Mersenne prime number? No
Calculation was done in 0.0000150204 seconds

## Sequences

 Is 51 a Catalan number? No Is 51 a Fibonacci number? No Is 51 a Idoneal number? No
Calculation was done in 0.0000050068 seconds

## Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.
 51 is not a Happy number 51 is not a Humble number 51 is not a Münchhausen number 51 is not a Perfect number 51 is not a Perfect square 51 is not a Palindrome
Calculation was done in 0.0052089691 seconds

## Numeric Bases of 51

In mathematics, a base or radix of a numeral system is the number of unique digits, including zero, used to represent numbers in that system.
BaseSystemValue
2Binary1100112
3Ternary12203
4Quaternary3034
5Quinary2015
6Senary1236
7Septenary1027
8Octal638
9Nonary569
10Decimal51
12Duodecimal4312
20Vigesimal2b20
36Base361f36
60Sexagesimalp60
Calculation was done in 0.0000150204 seconds

## Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.
 Square of 51 (n2) 2601 Cube of 51 (n3) 132651 Square root of 51 7.14143 Natural Logarithm (ln) of 51 3.93183 Decimal Logarithm (log) of 51 1.70757
Calculation was done in 0.0000050068 seconds

## Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
 Sine of 51 0.670229 Cosecant of 51 1.49203 Cosine of 51 0.742154 Secant of 51 1.34743 Tangent of 51 0.903086 Cotangent of 51 1.10731
Calculation was done in 0.0000088215 seconds

## Number parity

Parity is the property of an integer of whether it is even or odd.

No

### Is 51 an Odd Number?

Yes, the number 51 is an odd number.
Total number of all odd numbers from 1 to 51 is 26
Sum of all the odd numbers from 1 to 51 are 676
The sum of all odd numbers is a perfect square: 676 = 26
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
Calculation was done in 0.0000061989 seconds

## Ban number

In recreational mathematics, a ban number is a number that does not contain a particular letter when spelled out in English; in other words, the letter is "banned".
 The spelling of 51 in words is "fifty-one", meaning that: 51 is an aban number (a number without the letter a) 51 is not an eban number (as it contains the letter e) 51 is not an iban number (as it contains the letter i) 51 is not an oban number (as it contains the letter o) 51 is not a tban number (as it contains the letter t) 51 is an uban number (a number without the letter u)
Calculation was done in 0.0000028610 seconds

## Numeral systems

How to write 51 in other number systems?
 Bengali numerals ৫১ Eastern Arabic numerals ٥١ Hieroglyphs numeralsused in Ancient Egypt 𓎊𓏺 Khmer numerals ៥១ Japanese numerals 五十一 Roman numerals LI Thai numerals ๕๑
Calculation was done in 0.0000851154 seconds

## Translation

How do you say 51 in 38 different languages?
 Arabic واحد و خمسون Croatian pedeset i jedan Czech padesát jeden Danish en og halvtreds Dutch éénenvijftig Estonian blaatɔ̃ vɔ ɖekɛ Faroese fimmti­ein Filipino limáng pû’t isá Finnish viisi­kymmentä­yksi French cinquante et un Greek πενήντα ένα German ein­und­fünfzig Hebrew חמישים ואחת Hindi इक्यावन Hungarian ötven­egy Icelandic fimmtíu og einn Indonesian lima puluh satu Italian cinquantuno Japanese 五十一 Korean 오십일 Latvian piecdesmit viens Lithuanian penkiasdešimt vienas Norwegian femti­én Persian پنجاه و یک Polish pięćdziesiąt jeden Portuguese cinquenta e um Romanian cincizeci şi unu Russian пятьдесят один Serbian педесет и један Slovak päťdesiat­jeden Slovene petdeset ena Spanish cincuenta y uno Swahili hamsini na moja Swedish femtioen Thai ห้า​สิบ​เอ็ด Turkish elli bir Ukrainian пʼятдесят один Vietnamese năm mươi mốt
Calculation was done in 0.0139389038 seconds

## Miscellaneous

 Number 51 reversed 15 ASCII Code 51 3 Unicode Character U+0033 3 Unix Timestamp Thu, 01 Jan 1970 00:00:51 +0000
Calculation was done in 0.0000348091 seconds
This page was generated in 0.02 seconds.