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

20123981 (number)

20123981 is an odd 8-digits composite number following 20123980 and preceding 20123982. In scientific notation, it is written as 2.0123981 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 20113500 positive integers (up to 20123981) that are relatively prime to 20123981.

Interesting facts

20123981 has 4 divisors, whose sum is 20134464
The reverse of 20123981 is 18932102
Previous prime number is 2531

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty million one hundred twenty-three thousand nine hundred eighty-one

Notation

Scientific notation	2.0123981 × 10^7
Engineering notation	2.0123981 × 10^6

Prime Factorization of 20123981

Prime Factorization 2531 × 7951

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20123981	Product of the distinct prime numbers

The prime factorization of 20123981 is 2531 × 7951. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 40, 31, 696, 619, 4069, 3631, 50015, 68401, 416492, 869228, 1946245, 5911229, 2564171, 6516239, 361473924, 443083389, 2123151554, 7669247532

Basic calculations (n = 20123981)

Multiplication

n×y

n×2	40247962
n×3	60371943
n×4	80495924
n×5	100619905

Division

n÷y

n÷2	10061990.5
n÷3	6707993.6666667
n÷3	5030995.25
n÷5	4024796.2

Exponentiation

n^y

n²	404974611288361
n³	8.1497013830494E+21
n⁴	1.6400443578816E+29
n⁵	3.3004221497166E+36

Nth Root

^y√n

²√n	4485.9760364942
³√n	272.00150031612
⁴√n	66.977429306403
⁵√n	28.889683217432

Divisors of 20123981

1, 2531, 7951, 20123981

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	-20123980	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 20123981 can be divided by 4 positive divisors. The sum of these divisors (counting 20123981) is 1, the average is 0.25.

Base conversion 20123981

Base	System	Value
2	Binary	1001100110001000101001101
3	Ternary	1101212101220122
4	Quaternary	1030301011031
5	Quinary	20122431411
6	Senary	1555154325
8	Octal	114610515
10	Decimal	20123981
12	Duodecimal	68a59a5
16	Hexadecimal	133114d
20	Vigesimal	65f9j1
36	Base36	bzbrh

Cryptographic Hash Functions

md5	8b856b9f0bda4afd3b84d9f2007fb7ef
sha1	5ba7d378ae7ae8ed9e5ceb13183d24316f189874
sha256	33eb754bb30a81bbf53b3ef4c70461b95e330a4d385383c45d3697aafca90481
sha512	915383159b564e56a4efef7db6f857fe80a9d6c66585ed1cec775d565a2156598c6cf5e4b8ec60c2f5e695049b06cb7441dd4a79ee6ffbee6967765e00773687
ripemd-160	0292013713af9d4ba8295e12ca19da91595909e6

20123981 as geometric shapes

Circle

Radius = n

Diameter	40247962
Circumference	126442701.74116
Area	1.2722652637139E+15

Sphere

Radius = n

Volume	3.4137389325251E+22
Surface area	5.0890610548556E+15
Circumference	126442701.74116

Square

Length = n

Perimeter	80495924
Area	404974611288361
Diagonal	28459606.859138

Cube

Length = n

Surface area	2429847667730166
Volume	8.1497013830494E+21
Space diagonal	34855757.542551

Equilateral Triangle

Length = n

Perimeter	60371943
Area	1.7535915063172E+14
Altitude	17427878.771275

Triangular Pyramid

Length = n

Surface area	1.7535915063172E+14
Volume	9.604515187666E+20
Height	9486535.6197128