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

21131491 (number)

21131491 is an odd 8-digits composite number following 21131490 and preceding 21131492. In scientific notation, it is written as 2.1131491 × 10^7. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 20397960 positive integers (up to 21131491) that are relatively prime to 21131491.

Interesting facts

21131491 has 8 divisors, whose sum is 21868544
The reverse of 21131491 is 19413112
Previous prime number is 607

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty-one million one hundred thirty-one thousand four hundred ninety-one

Notation

Scientific notation	2.1131491 × 10^7
Engineering notation	2.1131491 × 10^6

Prime Factorization of 21131491

Prime Factorization 31 × 607 × 1123

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21131491	Product of the distinct prime numbers

The prime factorization of 21131491 is 31 × 607 × 1123. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 6, 32, 2, 129, 209, 9766, 1821, 76064, 62932, 51453, 523380, 7098643, 9352661, 12701486, 32884957, 495122926, 896738192, 1056221706, 7810289972

Basic calculations (n = 21131491)

Multiplication

n×y

n×2	42262982
n×3	63394473
n×4	84525964
n×5	105657455

Division

n÷y

n÷2	10565745.5
n÷3	7043830.3333333
n÷3	5282872.75
n÷5	4226298.2

Exponentiation

n^y

n²	446539911883081
n³	9.4360541290981E+21
n⁴	1.9939789290455E+29
n⁵	4.2135747793315E+36

Nth Root

^y√n

²√n	4596.9001511888
³√n	276.4670512183
⁴√n	67.800443591387
⁵√n	29.173331584423

Divisors of 21131491

1, 31, 607, 1123, 18817, 34813, 681661, 21131491

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	-21131490	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 21131491 can be divided by 8 positive divisors. The sum of these divisors (counting 21131491) is 1, the average is 0.125.

Base conversion 21131491

Base	System	Value
2	Binary	1010000100111000011100011
3	Ternary	1110202120221211
4	Quaternary	1100213003203
5	Quinary	20402201431
6	Senary	2032530551
8	Octal	120470343
10	Decimal	21131491
12	Duodecimal	70b0a57
16	Hexadecimal	14270e3
20	Vigesimal	6c18eb
36	Base36	ckx5v

Cryptographic Hash Functions

md5	aad057269a43bbefb228b4038a437442
sha1	9555d1c4ac6ca03a1c0756fadd939592a31ea26f
sha256	72f0c07f64ec0612579046d0bf7cb909d4e358d9e8fe29af06910599bb1b0b4d
sha512	9c99e2edca22bd308428b7fc975473221459f28c86870f5bfb83c418b877fdae77cbc02a499250960622b0b3d119d737ab0dec88633002c9105ac37a048c8375
ripemd-160	311aa96e7b3a6a1d57c149924d76f504da8e1280

21131491 as geometric shapes

Circle

Radius = n

Diameter	42262982
Circumference	132773073.77
Area	1.4028465067065E+15

Sphere

Radius = n

Volume	3.95256511078E+22
Surface area	5.6113860268261E+15
Circumference	132773073.77

Square

Length = n

Perimeter	84525964
Area	446539911883081
Diagonal	29884441.165365

Cube

Length = n

Surface area	2679239471298486
Volume	9.4360541290981E+21
Space diagonal	36600816.051684

Equilateral Triangle

Length = n

Perimeter	63394473
Area	1.9335745374721E+14
Altitude	18300408.025842

Triangular Pyramid

Length = n

Surface area	1.9335745374721E+14
Volume	1.1120496437214E+21
Height	9961480.388455