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

20131581 (number)

20131581 is an odd 8-digits composite number following 20131580 and preceding 20131582. In scientific notation, it is written as 2.0131581 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 13368320 positive integers (up to 20131581) that are relatively prime to 20131581.

Interesting facts

20131581 has 8 divisors, whose sum is 26947584
The reverse of 20131581 is 18513102
Previous prime number is 257

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

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

Notation

Scientific notation	2.0131581 × 10^7
Engineering notation	2.0131581 × 10^6

Prime Factorization of 20131581

Prime Factorization 3 × 257 × 26111

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20131581	Product of the distinct prime numbers

The prime factorization of 20131581 is 3 × 257 × 26111. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 9, 55, 5, 441, 522, 5971, 6559, 12517, 84540, 325742, 303623, 5171771, 4519744, 22427780, 29184912, 966106196, 374294174, 3265025012, 9542742919

Basic calculations (n = 20131581)

Multiplication

n×y

n×2	40263162
n×3	60394743
n×4	80526324
n×5	100657905

Division

n÷y

n÷2	10065790.5
n÷3	6710527
n÷3	5032895.25
n÷5	4026316.2

Exponentiation

n^y

n²	405280553559561
n³	8.1589382917091E+21
n⁴	1.6425232709354E+29
n⁵	3.3066590273222E+36

Nth Root

^y√n

²√n	4486.8230408609
³√n	272.03573726661
⁴√n	66.983752066161
⁵√n	28.891864976918

Divisors of 20131581

1, 3, 257, 771, 26111, 78333, 6710527, 20131581

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	-20131580	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 20131581 can be divided by 8 positive divisors. The sum of these divisors (counting 20131581) is 1, the average is 0.125.

Base conversion 20131581

Base	System	Value
2	Binary	1001100110010111011111101
3	Ternary	1101212210100010
4	Quaternary	1030302323331
5	Quinary	20123202311
6	Senary	1555253433
8	Octal	114627375
10	Decimal	20131581
12	Duodecimal	68aa279
16	Hexadecimal	1332efd
20	Vigesimal	65g8j1
36	Base36	bzhml

Cryptographic Hash Functions

md5	ce353f5bf12c1edf83055e16193fd4f4
sha1	6b46760d5056d21770ee99bdbbb0d35c0fa09a17
sha256	98808026a05de295b85c975d7a7b41268c0dedc1f674455da81ea1765f94a357
sha512	2eb4f43bf1f4d28341e1ce915a0578e8f3197c5004ad0be8118d7f2ccc587876199d0dea16204f8daa06686fd99e27e1d804c0d56f89bf3e1c29f70173f50e22
ripemd-160	ba9309e10d15904b6b9d71728cc4874d5dae815e

20131581 as geometric shapes

Circle

Radius = n

Diameter	40263162
Circumference	126490453.9495
Area	1.2732264097055E+15

Sphere

Radius = n

Volume	3.4176080797768E+22
Surface area	5.0929056388221E+15
Circumference	126490453.9495

Square

Length = n

Perimeter	80526324
Area	405280553559561
Diagonal	28470354.882213

Cube

Length = n

Surface area	2431683321357366
Volume	8.1589382917091E+21
Space diagonal	34868921.128688

Equilateral Triangle

Length = n

Perimeter	60394743
Area	1.754916275212E+14
Altitude	17434460.564344

Triangular Pyramid

Length = n

Surface area	1.754916275212E+14
Volume	9.6154009889169E+20
Height	9490118.2940708