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

20129981 (number)

20129981 is an odd 8-digits prime number following 20129980 and preceding 20129982. In scientific notation, it is written as 2.0129981 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 20129980 positive integers (up to 20129981) that are relatively prime to 20129981.

Interesting facts

20129981 has 2 divisors, whose sum is 20129982
The reverse of 20129981 is 18992102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0129981 × 10^7
Engineering notation	2.0129981 × 10^6

Prime Factorization of 20129981

Prime Factorization 20129981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20129981	Product of the distinct prime numbers

The prime factorization of 20129981 is 20129981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 2, 32, 12, 249, 228, 8402, 3259, 7180, 79716, 409706, 577415, 6696857, 5008095, 16540250, 63079119, 476748236, 757740637, 5333477867, 9552480904

Basic calculations (n = 20129981)

Multiplication

n×y

n×2	40259962
n×3	60389943
n×4	80519924
n×5	100649905

Division

n÷y

n÷2	10064990.5
n÷3	6709993.6666667
n÷3	5032495.25
n÷5	4025996.2

Exponentiation

n^y

n²	405216135060361
n³	8.1569930996585E+21
n⁴	1.6420011611326E+29
n⁵	3.3053452175577E+36

Nth Root

^y√n

²√n	4486.6447374402
³√n	272.02853020372
⁴√n	66.982421107633
⁵√n	28.891405713896

Divisors of 20129981

1, 20129981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20129982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10064991	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4486.6448488821	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999006457	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20129981 can be divided by 2 positive divisors. The sum of these divisors (counting 20129981) is 20129982, the average is 10064991.

Base conversion 20129981

Base	System	Value
2	Binary	1001100110010100010111101
3	Ternary	1101212201010212
4	Quaternary	1030302202331
5	Quinary	20123124411
6	Senary	1555242205
8	Octal	114624275
10	Decimal	20129981
12	Duodecimal	68a9365
16	Hexadecimal	13328bd
20	Vigesimal	65g4j1
36	Base36	bzge5

Cryptographic Hash Functions

md5	fa0f529e251adf7543c673ca49847de4
sha1	e57e1e7100e06460c9c668dac4f3ccb68e315e5f
sha256	70b30ebea24417fe02b54edf602e2fcaf328c24bdd2afe04b6b3ed5c2b0b3053
sha512	79be8c5eeab72876b46fcb5516e4c8ab8ac49e5354a12a30d1405db1bd88a3f8e9976b69ca85d03fb113d9c330e5e8cfa75b4f55b672fcfbf6cf2b576fd1d97c
ripemd-160	95e22f7f19aec6180386f6233161c4e048d0dbb4

20129981 as geometric shapes

Circle

Radius = n

Diameter	40259962
Circumference	126480400.853
Area	1.2730240330217E+15

Sphere

Radius = n

Volume	3.416793279636E+22
Surface area	5.0920961320867E+15
Circumference	126480400.853

Square

Length = n

Perimeter	80519924
Area	405216135060361
Diagonal	28468092.140513

Cube

Length = n

Surface area	2431296810362166
Volume	8.1569930996585E+21
Space diagonal	34866149.847396

Equilateral Triangle

Length = n

Perimeter	60389943
Area	1.7546373349281E+14
Altitude	17433074.923698

Triangular Pyramid

Length = n

Surface area	1.7546373349281E+14
Volume	9.6131085581007E+20
Height	9489364.0468376