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

20685985 (number)

20685985 is an odd 8-digits composite number following 20685984 and preceding 20685986. In scientific notation, it is written as 2.0685985 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 16464000 positive integers (up to 20685985) that are relatively prime to 20685985.

Interesting facts

20685985 has 8 divisors, whose sum is 24950376
The reverse of 20685985 is 58958602
Previous prime number is 197

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty million six hundred eighty-five thousand nine hundred eighty-five

Notation

Scientific notation	2.0685985 × 10^7
Engineering notation	2.0685985 × 10^6

Prime Factorization of 20685985

Prime Factorization 5 × 197 × 21001

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20685985	Product of the distinct prime numbers

The prime factorization of 20685985 is 5 × 197 × 21001. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 4, 66, 65, 27, 878, 226, 4880, 14237, 17264, 190004, 551228, 5934139, 9942486, 55371144, 93314793, 759775403, 951747991, 1238838501, 2063516616

Basic calculations (n = 20685985)

Multiplication

n×y

n×2	41371970
n×3	62057955
n×4	82743940
n×5	103429925

Division

n÷y

n÷2	10342992.5
n÷3	6895328.3333333
n÷3	5171496.25
n÷5	4137197

Exponentiation

n^y

n²	427909975420225
n³	8.8517393328931E+21
n⁴	1.8310694706414E+29
n⁵	3.7877475603645E+36

Nth Root

^y√n

²√n	4548.1848027537
³√n	274.51035734966
⁴√n	67.440231336745
⁵√n	29.049271198686

Divisors of 20685985

1, 5, 197, 985, 21001, 105005, 4137197, 20685985

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	-20685984	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 20685985 can be divided by 8 positive divisors. The sum of these divisors (counting 20685985) is 1, the average is 0.125.

Base conversion 20685985

Base	System	Value
2	Binary	1001110111010010010100001
3	Ternary	1102220221211121
4	Quaternary	1032322102201
5	Quinary	20243422420
6	Senary	2015212241
8	Octal	116722241
10	Decimal	20685985
12	Duodecimal	6b17081
16	Hexadecimal	13ba4a1
20	Vigesimal	695ej5
36	Base36	cbdep

Cryptographic Hash Functions

md5	66abaf67f402c2a82fec4b786bd73179
sha1	6c84a1595dd4f83c936aa26307949a2930d06ba3
sha256	583a245ab6797a7b98239f8a576a2c8375c23640174221954e78c4725e4f20e2
sha512	fc8025949a73943a2f9b6c48c0ec339397b2da5e0acd87090b9aeacdd2f8146e19e93d3644a880f338a9d4b2c14bd8b3a0875ed21bcafc1414dc6a6520395cb4
ripemd-160	274aa0eefe12fc4544ca2ff929600b800ba132b3

20685985 as geometric shapes

Circle

Radius = n

Diameter	41371970
Circumference	129973877.01654
Area	1.344318835178E+15

Sphere

Radius = n

Volume	3.7078079012945E+22
Surface area	5.3772753407119E+15
Circumference	129973877.01654

Square

Length = n

Perimeter	82743940
Area	427909975420225
Diagonal	29254400.538046

Cube

Length = n

Surface area	2567459852521350
Volume	8.8517393328931E+21
Space diagonal	35829177.024608

Equilateral Triangle

Length = n

Perimeter	62057955
Area	1.8529045462334E+14
Altitude	17914588.512304

Triangular Pyramid

Length = n

Surface area	1.8529045462334E+14
Volume	1.0431874845974E+21
Height	9751466.8460155