Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

51991 (number)

51991 is an odd 5-digits prime number following 51990 and preceding 51992. In scientific notation, it is written as 5.1991 × 10^4. The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors. There are 51990 positive integers (up to 51991) that are relatively prime to 51991.

Interesting facts

51991 has 2 divisors, whose sum is 51992
The reverse of 51991 is 19915
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 5
Sum of Digits 25
Digital Root 7

Name

Name	fifty-one thousand nine hundred ninety-one

Notation

Scientific notation	5.1991 × 10^4
Engineering notation	5.1991 × 10^3

Prime Factorization of 51991

Prime Factorization 51991

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	51991	Product of the distinct prime numbers

The prime factorization of 51991 is 51991. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 1, 33, 68, 410, 179, 9462, 8497, 54838, 52274, 201146, 144343, 8597009, 858819, 24691267, 37986054, 152885365, 780940318, 5829910285, 6523898151

Basic calculations (n = 51991)

Multiplication

n×y

n×2	103982
n×3	155973
n×4	207964
n×5	259955

Division

n÷y

n÷2	25995.5
n÷3	17330.333333333
n÷3	12997.75
n÷5	10398.2

Exponentiation

n^y

n²	2703064081
n³	140535004635271
n⁴	7306555425992374561
n⁵	3.7987512315277E+23

Nth Root

^y√n

²√n	228.01535036045
³√n	37.322958072106
⁴√n	15.100177163214
⁵√n	8.7737576513248

Divisors of 51991

1, 51991

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	51992	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	25996	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	228.01754318473	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999615325435	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 51991 can be divided by 2 positive divisors. The sum of these divisors (counting 51991) is 51992, the average is 25996.

Base conversion 51991

Base	System	Value
2	Binary	1100101100010111
3	Ternary	2122022121
4	Quaternary	30230113
5	Quinary	3130431
6	Senary	1040411
8	Octal	145427
10	Decimal	51991
12	Duodecimal	26107
16	Hexadecimal	cb17
20	Vigesimal	69jb
36	Base36	1447

Cryptographic Hash Functions

md5	1a81daeb419a28fc7a373eb87bc3ef65
sha1	cfd82b474ff79aefc51cf4a90a83244d2f82cba8
sha256	4d10cafb2c3ec5af0b0190c4ccda5dd2417cb8ea5cc3bff4f539397ffb992a6c
sha512	7cc8ea6b547c923d7d42234b23c1dd97fecd1e990128d0d064fe5e1c44153693a6d07c0675f2894509b8a9ec50f46f6548c809bf1f55d49e1f1bdc4412359956
ripemd-160	49597e96cbba0d52b14729dc5d0d9da64e9a73d6

51991 as geometric shapes

Circle

Radius = n

Diameter	103982
Circumference	326669.08730557
Area	8491926259.052

Sphere

Radius = n

Volume	5.8867165084583E+14
Surface area	33967705036.208
Circumference	326669.08730557

Square

Length = n

Perimeter	207964
Area	2703064081
Diagonal	73526.37732134

Cube

Length = n

Surface area	16218384486
Volume	140535004635271
Space diagonal	90051.053536313

Equilateral Triangle

Length = n

Perimeter	155973
Area	1170461081.1016
Altitude	45025.526768157

Triangular Pyramid

Length = n

Surface area	1170461081.1016
Volume	16562209128614
Height	24508.792440447