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

21131687 (number)

21131687 is an odd 8-digits composite number following 21131686 and preceding 21131688. In scientific notation, it is written as 2.1131687 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 19719040 positive integers (up to 21131687) that are relatively prime to 21131687.

Interesting facts

21131687 has 8 divisors, whose sum is 22589280
The reverse of 21131687 is 78613112
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	2.1131687 × 10^7
Engineering notation	2.1131687 × 10^6

Prime Factorization of 21131687

Prime Factorization 41 × 23 × 22409

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21131687	Product of the distinct prime numbers

The prime factorization of 21131687 is 41 × 23 × 22409. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 93, 64, 390, 709, 111, 3441, 62259, 46152, 275604, 438254, 807841, 9168952, 13460182, 99229310, 512292738, 349841701, 3276287671, 2131028585

Basic calculations (n = 21131687)

Multiplication

n×y

n×2	42263374
n×3	63395061
n×4	84526748
n×5	105658435

Division

n÷y

n÷2	10565843.5
n÷3	7043895.6666667
n÷3	5282921.75
n÷5	4226337.4

Exponentiation

n^y

n²	446548195465969
n³	9.4363166970017E+21
n⁴	1.9940529087391E+29
n⁵	4.2137701928915E+36

Nth Root

^y√n

²√n	4596.9214698535
³√n	276.46790598326
⁴√n	67.800600807467
⁵√n	29.173385702249

Divisors of 21131687

1, 23, 41, 943, 22409, 515407, 918769, 21131687

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	-21131686	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 21131687 can be divided by 8 positive divisors. The sum of these divisors (counting 21131687) is 1, the average is 0.125.

Base conversion 21131687

Base	System	Value
2	Binary	1010000100111000110100111
3	Ternary	1110202121020002
4	Quaternary	1100213012213
5	Quinary	20402203222
6	Senary	2032531515
8	Octal	120470647
10	Decimal	21131687
12	Duodecimal	70b0b9b
16	Hexadecimal	14271a7
20	Vigesimal	6c1947
36	Base36	ckxbb

Cryptographic Hash Functions

md5	c2cbbff2818513c6c4ec6fd4b475ad4f
sha1	5fb8c9be0b65a757862dd876688f86c5ab0b94bc
sha256	9363e19029329e1fbd0c2df419262101a49a9d2572714a88705520ed1dc1a671
sha512	0ccdc38b46dc28bdd4c588d01dba2c9052b5187bd65e7bbfc62761ffdfd90ce79f1c55d3590ab0b40939a5d44850610d669b70dc9c45ff19513fedda521efa88
ripemd-160	8559f9c29c37263367551910a8c108005d0f50fd

21131687 as geometric shapes

Circle

Radius = n

Diameter	42263374
Circumference	132774305.27432
Area	1.4028725303497E+15

Sphere

Radius = n

Volume	3.9526750949663E+22
Surface area	5.6114901213987E+15
Circumference	132774305.27432

Square

Length = n

Perimeter	84526748
Area	446548195465969
Diagonal	29884718.351223

Cube

Length = n

Surface area	2679289172795814
Volume	9.4363166970017E+21
Space diagonal	36601155.533643

Equilateral Triangle

Length = n

Perimeter	63395061
Area	1.9336104064381E+14
Altitude	18300577.766821

Triangular Pyramid

Length = n

Surface area	1.9336104064381E+14
Volume	1.1120805876456E+21
Height	9961572.7837411