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

21087531 (number)

21087531 is an odd 8-digits composite number following 21087530 and preceding 21087532. In scientific notation, it is written as 2.1087531 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 13231296 positive integers (up to 21087531) that are relatively prime to 21087531.

Interesting facts

21087531 has 8 divisors, whose sum is 24809040
The reverse of 21087531 is 13578012
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million eighty-seven thousand five hundred thirty-one

Notation

Scientific notation	2.1087531 × 10^7
Engineering notation	2.1087531 × 10^6

Prime Factorization of 21087531

Prime Factorization 9 × 17 × 137827

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21087531	Product of the distinct prime numbers

The prime factorization of 21087531 is 9 × 17 × 137827. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 13, 54, 254, 88, 5057, 1460, 89103, 26753, 819081, 344219, 4146878, 1283776, 93261530, 22131659, 713439972, 801421426, 2096310618, 7559050427

Basic calculations (n = 21087531)

Multiplication

n×y

n×2	42175062
n×3	63262593
n×4	84350124
n×5	105437655

Division

n÷y

n÷2	10543765.5
n÷3	7029177
n÷3	5271882.75
n÷5	4217506.2

Exponentiation

n^y

n²	444683963675961
n³	9.3772868692197E+21
n⁴	1.9774382755056E+29
n⁵	4.1699290935312E+36

Nth Root

^y√n

²√n	4592.1161788439
³√n	276.27520596087
⁴√n	67.765154606508
⁵√n	29.161183571255

Divisors of 21087531

1, 9, 17, 153, 137827, 1240443, 2343059, 21087531

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21087530	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087531 can be divided by 8 positive divisors. The sum of these divisors (counting 21087531) is 1, the average is 0.125.

Base conversion 21087531

Base	System	Value
2	Binary	1010000011100010100101011
3	Ternary	1110200100122200
4	Quaternary	1100130110223
5	Quinary	20344300111
6	Senary	2031551243
8	Octal	120342453
10	Decimal	21087531
12	Duodecimal	708b523
16	Hexadecimal	141c52b
20	Vigesimal	6bfigb
36	Base36	cjz8r

Cryptographic Hash Functions

md5	e2d084391b79d07c423c51532c5b18a3
sha1	208aff432be91dccc1f6fde8a26330dca63654cc
sha256	4b24087d772fb599ed6eefe97ac30034561ea146045a0dc767ddbeb10484f00f
sha512	3d2ba66c097f7fb0e7443b1cc2be5fc11ea1c4916b5d46e678c00585525a134f29ffbc76ac3b2b43e43b62b05bedf6a522817ba037796734ce43dc0e59efcb10
ripemd-160	1b028efd56cd309380929fee5a0d0a0c698d0012

21087531 as geometric shapes

Circle

Radius = n

Diameter	42175062
Circumference	132496864.94389
Area	1.3970158734536E+15

Sphere

Radius = n

Volume	3.927948738526E+22
Surface area	5.5880634938144E+15
Circumference	132496864.94389

Square

Length = n

Perimeter	84350124
Area	444683963675961
Diagonal	29822272.337163

Cube

Length = n

Surface area	2668103782055766
Volume	9.3772868692197E+21
Space diagonal	36524675.098184

Equilateral Triangle

Length = n

Perimeter	63262593
Area	1.9255380459947E+14
Altitude	18262337.549092

Triangular Pyramid

Length = n

Surface area	1.9255380459947E+14
Volume	1.1051238557261E+21
Height	9940757.445721