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

20181131 (number)

20181131 is an odd 8-digits prime number following 20181130 and preceding 20181132. In scientific notation, it is written as 2.0181131 × 10^7. The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors. There are 20181130 positive integers (up to 20181131) that are relatively prime to 20181131.

Interesting facts

20181131 has 2 divisors, whose sum is 20181132
The reverse of 20181131 is 13118102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

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

Notation

Scientific notation	2.0181131 × 10^7
Engineering notation	2.0181131 × 10^6

Prime Factorization of 20181131

Prime Factorization 20181131

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20181131	Product of the distinct prime numbers

The prime factorization of 20181131 is 20181131. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 6, 39, 34, 541, 547, 5131, 4090, 73419, 39869, 258662, 106922, 4494168, 5973838, 77760824, 83242563, 795575910, 312095876, 9440888357, 720009902

Basic calculations (n = 20181131)

Multiplication

n×y

n×2	40362262
n×3	60543393
n×4	80724524
n×5	100905655

Division

n÷y

n÷2	10090565.5
n÷3	6727043.6666667
n÷3	5045282.75
n÷5	4036226.2

Exponentiation

n^y

n²	407278048439161
n³	8.2193316489751E+21
n⁴	1.6587540874041E+29
n⁵	3.3475533534688E+36

Nth Root

^y√n

²√n	4492.3413717125
³√n	272.25874222124
⁴√n	67.024930971337
⁵√n	28.906073344881

Divisors of 20181131

1, 20181131

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20181132	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10090566	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4492.3414830131	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999008975	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181131 can be divided by 2 positive divisors. The sum of these divisors (counting 20181131) is 20181132, the average is 10090566.

Base conversion 20181131

Base	System	Value
2	Binary	1001100111111000010001011
3	Ternary	1101222022022022
4	Quaternary	1030333002023
5	Quinary	20131244011
6	Senary	2000315055
8	Octal	114770213
10	Decimal	20181131
12	Duodecimal	6912a8b
16	Hexadecimal	133f08b
20	Vigesimal	662cgb
36	Base36	c0juz

Cryptographic Hash Functions

md5	3cf9930c8a7cbe014e9402dcd95847dc
sha1	5382dd209675e7cb4beb1a9431292f1a10ea28ce
sha256	e28b9eafc0c8ba60be91874cab7938446382b1002840a1d7c0bde6a4ceff6b5d
sha512	b8fac16e781c26c45b7100c08914adfc1e835026a4ecac5b370311155e4e7c9b45ebc8e3d84821d7a35f8a8ad3677df18806de10fdb8865bfdff45ca4270ad96
ripemd-160	63318125843c9efd7d85a52812d4d97ab487c41e

20181131 as geometric shapes

Circle

Radius = n

Diameter	40362262
Circumference	126801785.78147
Area	1.2795017249449E+15

Sphere

Radius = n

Volume	3.4429055901117E+22
Surface area	5.1180068997794E+15
Circumference	126801785.78147

Square

Length = n

Perimeter	80724524
Area	407278048439161
Diagonal	28540429.164228

Cube

Length = n

Surface area	2443668290634966
Volume	8.2193316489751E+21
Space diagonal	34954744.246203

Equilateral Triangle

Length = n

Perimeter	60543393
Area	1.7635656817603E+14
Altitude	17477372.123102

Triangular Pyramid

Length = n

Surface area	1.7635656817603E+14
Volume	9.6865752430191E+20
Height	9513476.388076