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

21457531 (number)

21457531 is an odd 8-digits composite number following 21457530 and preceding 21457532. In scientific notation, it is written as 2.1457531 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21447832 positive integers (up to 21457531) that are relatively prime to 21457531.

Interesting facts

21457531 has 4 divisors, whose sum is 21467232
The reverse of 21457531 is 13575412
Previous prime number is 6287

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million four hundred fifty-seven thousand five hundred thirty-one

Notation

Scientific notation	2.1457531 × 10^7
Engineering notation	2.1457531 × 10^6

Prime Factorization of 21457531

Prime Factorization 6287 × 3413

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21457531	Product of the distinct prime numbers

The prime factorization of 21457531 is 6287 × 3413. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 1, 25, 28, 254, 387, 727, 8474, 51431, 21966, 132819, 779740, 6555293, 4298656, 29415352, 82067334, 244723746, 80144657, 7914997571, 5811640625

Basic calculations (n = 21457531)

Multiplication

n×y

n×2	42915062
n×3	64372593
n×4	85830124
n×5	107287655

Division

n÷y

n÷2	10728765.5
n÷3	7152510.3333333
n÷3	5364382.75
n÷5	4291506.2

Exponentiation

n^y

n²	460425636615961
n³	9.8795973708817E+21
n⁴	2.1199176685321E+29
n⁵	4.5488199089976E+36

Nth Root

^y√n

²√n	4632.2274339674
³√n	277.88168023574
⁴√n	68.060468952009
⁵√n	29.262804760017

Divisors of 21457531

1, 3413, 6287, 21457531

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21457530	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21457531 can be divided by 4 positive divisors. The sum of these divisors (counting 21457531) is 1, the average is 0.25.

Base conversion 21457531

Base	System	Value
2	Binary	1010001110110101001111011
3	Ternary	1111101011012101
4	Quaternary	1101312221323
5	Quinary	20443120111
6	Senary	2043524231
8	Octal	121665173
10	Decimal	21457531
12	Duodecimal	7229677
16	Hexadecimal	1476a7b
20	Vigesimal	6e23gb
36	Base36	crwqj

Cryptographic Hash Functions

md5	b7cd6eddb20f0dec3463d6c9686b5051
sha1	dc04ef053e66b0a55c43b39e3420958b538a26c6
sha256	043ce8d1a0e84f4c4e700dde050d68e2da74a4083fa81d93caf545f0b0d3f812
sha512	e12a3e7141b7dcb27788604decd8344699763bf3b9ae73355cf232d6d1ea0ea3e527e4b6cb8b7b933d2675ddebc0cf85964d762b7fc7d60004aa266b9d6f0f04
ripemd-160	bebe3f8cc9199ec03fb8c22415a0190e433fbad3

21457531 as geometric shapes

Circle

Radius = n

Diameter	42915062
Circumference	134821643.50755
Area	1.4464697975171E+15

Sphere

Radius = n

Volume	4.1383560694383E+22
Surface area	5.7858791900684E+15
Circumference	134821643.50755

Square

Length = n

Perimeter	85830124
Area	460425636615961
Diagonal	30345531.355241

Cube

Length = n

Surface area	2762553819695766
Volume	9.8795973708817E+21
Space diagonal	37165533.896984

Equilateral Triangle

Length = n

Perimeter	64372593
Area	1.9937014893152E+14
Altitude	18582766.948492

Triangular Pyramid

Length = n

Surface area	1.9937014893152E+14
Volume	1.1643217160572E+21
Height	10115177.118414