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

20707981 (number)

20707981 is an odd 8-digits composite number following 20707980 and preceding 20707982. In scientific notation, it is written as 2.0707981 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 16977840 positive integers (up to 20707981) that are relatively prime to 20707981.

Interesting facts

20707981 has 8 divisors, whose sum is 24695424
The reverse of 20707981 is 18970702
Previous prime number is 23

Basic properties

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

Name

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

Notation

Scientific notation	2.0707981 × 10^7
Engineering notation	2.0707981 × 10^6

Prime Factorization of 20707981

Prime Factorization 7 × 23 × 128621

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20707981	Product of the distinct prime numbers

The prime factorization of 20707981 is 7 × 23 × 128621. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 1, 71, 625, 549, 9788, 1471, 31601, 21023, 812249, 86070, 3925296, 471893, 43952710, 82448761, 589176850, 740335912, 3527385971, 4684256266

Basic calculations (n = 20707981)

Multiplication

n×y

n×2	41415962
n×3	62123943
n×4	82831924
n×5	103539905

Division

n÷y

n÷2	10353990.5
n÷3	6902660.3333333
n÷3	5176995.25
n÷5	4141596.2

Exponentiation

n^y

n²	428820477096361
n³	8.8800062921224E+21
n⁴	1.8388700157715E+29
n⁵	3.8079285348066E+36

Nth Root

^y√n

²√n	4550.6022678322
³√n	274.60762112368
⁴√n	67.45815197463
⁵√n	29.055446357079

Divisors of 20707981

1, 7, 23, 161, 128621, 900347, 2958283, 20707981

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	-20707980	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 20707981 can be divided by 8 positive divisors. The sum of these divisors (counting 20707981) is 1, the average is 0.125.

Base conversion 20707981

Base	System	Value
2	Binary	1001110111111101010001101
3	Ternary	1102222002000021
4	Quaternary	1032333222031
5	Quinary	20300123411
6	Senary	2015502141
8	Octal	116775215
10	Decimal	20707981
12	Duodecimal	6b27951
16	Hexadecimal	13bfa8d
20	Vigesimal	6989j1
36	Base36	cbudp

Cryptographic Hash Functions

md5	d234f0d8d06ccfcae5e9a03b7595716b
sha1	01604ad80ba955a7d012f2d268bbefda4419f925
sha256	bc6d5963f9ab5a1cd3727eba5864f07a2bac8a63c601cc083aaf012746a9db36
sha512	85db379ee084707a85938337f215b87422cf3384cdbb96647a506d4a342985656029b9bd721540aa75f0b669e50b0aee99621803c39d027eaf5ec1eeafb5a3b5
ripemd-160	be6075ebc6f7229e7e955951dc55d6fa080b78bd

20707981 as geometric shapes

Circle

Radius = n

Diameter	41415962
Circumference	130112081.96055
Area	1.3471792605548E+15

Sphere

Radius = n

Volume	3.7196483374884E+22
Surface area	5.3887170422192E+15
Circumference	130112081.96055

Square

Length = n

Perimeter	82831924
Area	428820477096361
Diagonal	29285507.579564

Cube

Length = n

Surface area	2572922862578166
Volume	8.8800062921224E+21
Space diagonal	35867275.214171

Equilateral Triangle

Length = n

Perimeter	62123943
Area	1.8568471341421E+14
Altitude	17933637.607085

Triangular Pyramid

Length = n

Surface area	1.8568471341421E+14
Volume	1.0465187776898E+21
Height	9761835.8598548