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

20137981 (number)

20137981 is an odd 8-digits composite number following 20137980 and preceding 20137982. In scientific notation, it is written as 2.0137981 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 20057500 positive integers (up to 20137981) that are relatively prime to 20137981.

Interesting facts

20137981 has 4 divisors, whose sum is 20218464
The reverse of 20137981 is 18973102
Previous prime number is 251

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.0137981 × 10^7
Engineering notation	2.0137981 × 10^6

Prime Factorization of 20137981

Prime Factorization 251 × 80231

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20137981	Product of the distinct prime numbers

The prime factorization of 20137981 is 251 × 80231. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 4, 8, 90, 678, 99, 4230, 5344, 83678, 1485, 274311, 268862, 659982, 4648787, 25947388, 6949249, 469580882, 202921202, 7453856159, 8161475654

Basic calculations (n = 20137981)

Multiplication

n×y

n×2	40275962
n×3	60413943
n×4	80551924
n×5	100689905

Division

n÷y

n÷2	10068990.5
n÷3	6712660.3333333
n÷3	5034495.25
n÷5	4027596.2

Exponentiation

n^y

n²	405538278756361
n³	8.1667221523683E+21
n⁴	1.6446129553667E+29
n⁵	3.3119184447529E+36

Nth Root

^y√n

²√n	4487.5361836981
³√n	272.06456170014
⁴√n	66.989075107051
⁵√n	28.893701737049

Divisors of 20137981

1, 251, 80231, 20137981

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	-20137980	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 20137981 can be divided by 4 positive divisors. The sum of these divisors (counting 20137981) is 1, the average is 0.25.

Base conversion 20137981

Base	System	Value
2	Binary	1001100110100011111111101
3	Ternary	1101220010010011
4	Quaternary	1030310133331
5	Quinary	20123403411
6	Senary	1555343221
8	Octal	114643775
10	Decimal	20137981
12	Duodecimal	68b1b11
16	Hexadecimal	13347fd
20	Vigesimal	65h4j1
36	Base36	bzmkd

Cryptographic Hash Functions

md5	0dce0265431dd6c83d2c106028f57891
sha1	bde361e81af805d40fad0d0840509bd0fc74db87
sha256	2282b77fd784dcdd15d6341bdd2da19bfddf2014dd09c49434545c779b4849c9
sha512	6e1016c4b6f5fa09c8d2744d43140824591cf1b5ff79a9fd8197b088dd2cd140ec18e83d46781a6ccade7fc144296ac83df0ef140b5ab57a34651350959f571c
ripemd-160	62ec25c46f291192bd9ab3078f75b522a07d167b

20137981 as geometric shapes

Circle

Radius = n

Diameter	40275962
Circumference	126530666.33546
Area	1.2740360772904E+15

Sphere

Radius = n

Volume	3.4208685757052E+22
Surface area	5.0961443091617E+15
Circumference	126530666.33546

Square

Length = n

Perimeter	80551924
Area	405538278756361
Diagonal	28479405.849012

Cube

Length = n

Surface area	2433229672538166
Volume	8.1667221523683E+21
Space diagonal	34880006.253857

Equilateral Triangle

Length = n

Perimeter	60413943
Area	1.7560322580501E+14
Altitude	17440003.126928

Triangular Pyramid

Length = n

Surface area	1.7560322580501E+14
Volume	9.6245743566767E+20
Height	9493135.2830039