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

20149981 (number)

20149981 is an odd 8-digits composite number following 20149980 and preceding 20149982. In scientific notation, it is written as 2.0149981 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 18560448 positive integers (up to 20149981) that are relatively prime to 20149981.

Interesting facts

20149981 has 8 divisors, whose sum is 21790080
The reverse of 20149981 is 18994102
Previous prime number is 47

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

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

Notation

Scientific notation	2.0149981 × 10^7
Engineering notation	2.0149981 × 10^6

Prime Factorization of 20149981

Prime Factorization 17 × 47 × 25219

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20149981	Product of the distinct prime numbers

The prime factorization of 20149981 is 17 × 47 × 25219. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 43, 28, 789, 260, 4320, 9981, 95948, 45007, 24587, 619779, 1473981, 4221363, 66312744, 16044453, 183130281, 386503131, 9812932928, 279278657

Basic calculations (n = 20149981)

Multiplication

n×y

n×2	40299962
n×3	60449943
n×4	80599924
n×5	100749905

Division

n÷y

n÷2	10074990.5
n÷3	6716660.3333333
n÷3	5037495.25
n÷5	4029996.2

Exponentiation

n^y

n²	406021734300361
n³	8.1813302317393E+21
n⁴	1.6485364872427E+29
n⁵	3.3217978895748E+36

Nth Root

^y√n

²√n	4488.8730211491
³√n	272.1185910568
⁴√n	66.999052389934
⁵√n	28.897144403985

Divisors of 20149981

1, 17, 47, 799, 25219, 428723, 1185293, 20149981

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	-20149980	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 20149981 can be divided by 8 positive divisors. The sum of these divisors (counting 20149981) is 1, the average is 0.125.

Base conversion 20149981

Base	System	Value
2	Binary	1001100110111011011011101
3	Ternary	1101220201120121
4	Quaternary	1030313123131
5	Quinary	20124244411
6	Senary	1555514541
8	Octal	114673335
10	Decimal	20149981
12	Duodecimal	68b8a51
16	Hexadecimal	13376dd
20	Vigesimal	65iej1
36	Base36	bzvtp

Cryptographic Hash Functions

md5	3d6ffcf87859eef5d265802340e2c351
sha1	78b87b591a72f93eae3e575839469fbaef0b3123
sha256	62f8785bd628d748d4cedc0d6c7838701b9894174ac3629a547f89ad6d7a0b90
sha512	40370be6d1a806d1c21e445b835a6eb1556f7a9dcd790a7381d9e91fda5ec9859b0f2127c68217f5dca3caff4a4ccc6d7f5778a39783634f4eeaca596f6138d1
ripemd-160	a9620bb7e249137c831bb78ee8d88b0a557fd59e

20149981 as geometric shapes

Circle

Radius = n

Diameter	40299962
Circumference	126606064.55915
Area	1.2755548976758E+15

Sphere

Radius = n

Volume	3.4269875936832E+22
Surface area	5.1022195907032E+15
Circumference	126606064.55915

Square

Length = n

Perimeter	80599924
Area	406021734300361
Diagonal	28496376.41176

Cube

Length = n

Surface area	2436130405802166
Volume	8.1813302317393E+21
Space diagonal	34900790.863548

Equilateral Triangle

Length = n

Perimeter	60449943
Area	1.7581256819636E+14
Altitude	17450395.431774

Triangular Pyramid

Length = n

Surface area	1.7581256819636E+14
Volume	9.6417901433156E+20
Height	9498792.1372534