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

21031531 (number)

21031531 is an odd 8-digits prime number following 21031530 and preceding 21031532. In scientific notation, it is written as 2.1031531 × 10^7. The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors. There are 21031530 positive integers (up to 21031531) that are relatively prime to 21031531.

Interesting facts

21031531 has 2 divisors, whose sum is 21031532
The reverse of 21031531 is 13513012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7

Name

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

Notation

Scientific notation	2.1031531 × 10^7
Engineering notation	2.1031531 × 10^6

Prime Factorization of 21031531

Prime Factorization 21031531

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21031531	Product of the distinct prime numbers

The prime factorization of 21031531 is 21031531. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 9, 55, 14, 320, 253, 3790, 8583, 7090, 73603, 676175, 29783, 7437972, 681787, 86013498, 71531920, 458364913, 747738065, 873008243, 724083745

Basic calculations (n = 21031531)

Multiplication

n×y

n×2	42063062
n×3	63094593
n×4	84126124
n×5	105157655

Division

n÷y

n÷2	10515765.5
n÷3	7010510.3333333
n÷3	5257882.75
n÷5	4206306.2

Exponentiation

n^y

n²	442325296203961
n³	9.3027781791978E+21
n⁴	1.9565166766192E+29
n⁵	4.1148541136334E+36

Nth Root

^y√n

²√n	4586.0147186855
³√n	276.03043055218
⁴√n	67.720120486348
⁵√n	29.145679018224

Divisors of 21031531

1, 21031531

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21031532	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10515766	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4586.0148277126	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999049047	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031531 can be divided by 2 positive divisors. The sum of these divisors (counting 21031531) is 21031532, the average is 10515766.

Base conversion 21031531

Base	System	Value
2	Binary	1010000001110101001101011
3	Ternary	1110120111211121
4	Quaternary	1100032221223
5	Quinary	20341002111
6	Senary	2030440111
8	Octal	120165153
10	Decimal	21031531
12	Duodecimal	7063037
16	Hexadecimal	140ea6b
20	Vigesimal	6b8igb
36	Base36	cis17

Cryptographic Hash Functions

md5	7b6b35600cddeaafd0166d8f70e3d60e
sha1	21cf89b7ae5bb86f718ca74c23b1bef27b13a235
sha256	cd4787a998617e576db865c8ff3f4a18e97592e1700547231cc8b1ba4a8bfa79
sha512	ee1e5e2d25fcada4d1b145971cac69a6b0d001ecf8687dbddd42a5550f2738ea06dd9c9bdc1153feaa5c6d5758fb0d6055eb93c7d3b974c1f4bd948b140e6de4
ripemd-160	408527c996adbc034457fc4a1befdda5b37d8e1d

21031531 as geometric shapes

Circle

Radius = n

Diameter	42063062
Circumference	132145006.56669
Area	1.3896059010513E+15

Sphere

Radius = n

Volume	3.8967386114324E+22
Surface area	5.5584236042052E+15
Circumference	132145006.56669

Square

Length = n

Perimeter	84126124
Area	442325296203961
Diagonal	29743076.37767

Cube

Length = n

Surface area	2653951777223766
Volume	9.3027781791978E+21
Space diagonal	36427680.25296

Equilateral Triangle

Length = n

Perimeter	63094593
Area	1.9153247162455E+14
Altitude	18213840.12648

Triangular Pyramid

Length = n

Surface area	1.9153247162455E+14
Volume	1.0963429223975E+21
Height	9914358.7925567