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

21087957 (number)

21087957 is an odd 8-digits composite number following 21087956 and preceding 21087958. In scientific notation, it is written as 2.1087957 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 12562800 positive integers (up to 21087957) that are relatively prime to 21087957.

Interesting facts

21087957 has 16 divisors, whose sum is 31196160
The reverse of 21087957 is 75978012
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twenty-one million eighty-seven thousand nine hundred fifty-seven

Notation

Scientific notation	2.1087957 × 10^7
Engineering notation	2.1087957 × 10^6

Prime Factorization of 21087957

Prime Factorization 3 × 11 × 59 × 10831

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21087957	Product of the distinct prime numbers

The prime factorization of 21087957 is 3 × 11 × 59 × 10831. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 5, 11, 346, 140, 9534, 7542, 55259, 3795, 218084, 153136, 2228377, 9637946, 42595897, 13795067, 245371572, 471880402, 8255998832, 360832058

Basic calculations (n = 21087957)

Multiplication

n×y

n×2	42175914
n×3	63263871
n×4	84351828
n×5	105439785

Division

n÷y

n÷2	10543978.5
n÷3	7029319
n÷3	5271989.25
n÷5	4217591.4

Exponentiation

n^y

n²	444701930433849
n³	9.377855186806E+21
n⁴	1.9775980693159E+29
n⁵	4.1703503049017E+36

Nth Root

^y√n

²√n	4592.1625624536
³√n	276.2770663406
⁴√n	67.765496843553
⁵√n	29.1613013903

Divisors of 21087957

1, 3, 11, 33, 59, 177, 649, 1947, 10831, 32493, 119141, 357423, 639029, 1917087, 7029319, 21087957

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21087956	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087957 can be divided by 16 positive divisors. The sum of these divisors (counting 21087957) is 1, the average is 0.0625.

Base conversion 21087957

Base	System	Value
2	Binary	1010000011100011011010101
3	Ternary	1110200101020110
4	Quaternary	1100130123111
5	Quinary	20344303312
6	Senary	2031553233
8	Octal	120343325
10	Decimal	21087957
12	Duodecimal	708b819
16	Hexadecimal	141c6d5
20	Vigesimal	6bfjhh
36	Base36	cjzkl

Cryptographic Hash Functions

md5	74128063fe436ca45b100d2f2d6d3bdf
sha1	b243ccea7f2d8c0e5a1c8d5a35c81ffa4113b4fa
sha256	94616f5c0f5e8418842e01ba200fddaf87103713e0a0ec488e8484ad1330eb80
sha512	e0df3ed2a326dcf5c832ffde8f55e0f9b0e13a3bf3f9bb793f2842bf04423a488105c41d5ac75526c49075eab0606a0dd6cc8c313ae46c7d0a61b5ad07095761
ripemd-160	62b25a8514728a27afffd0665a7049dced505bab

21087957 as geometric shapes

Circle

Radius = n

Diameter	42175914
Circumference	132499541.58083
Area	1.3970723176882E+15

Sphere

Radius = n

Volume	3.9281867948398E+22
Surface area	5.5882892707527E+15
Circumference	132499541.58083

Square

Length = n

Perimeter	84351828
Area	444701930433849
Diagonal	29822874.792141

Cube

Length = n

Surface area	2668211582603094
Volume	9.377855186806E+21
Space diagonal	36525412.951828

Equilateral Triangle

Length = n

Perimeter	63263871
Area	1.9256158443385E+14
Altitude	18262706.475914

Triangular Pyramid

Length = n

Surface area	1.9256158443385E+14
Volume	1.105190832596E+21
Height	9940958.2640469