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

20681638 (number)

20681638 is an even 8-digits composite number following 20681637 and preceding 20681639. In scientific notation, it is written as 2.0681638 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 10340818 positive integers (up to 20681638) that are relatively prime to 20681638.

Interesting facts

20681638 has 4 divisors, whose sum is 31022460
The reverse of 20681638 is 83618602
Previous prime number is 2

Basic properties

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

Name

Name	twenty million six hundred eighty-one thousand six hundred thirty-eight

Notation

Scientific notation	2.0681638 × 10^7
Engineering notation	2.0681638 × 10^6

Prime Factorization of 20681638

Prime Factorization 2 × 10340819

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20681638	Product of the distinct prime numbers

The prime factorization of 20681638 is 2 × 10340819. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 9, 73, 7, 640, 1, 139, 9729, 64103, 86659, 559161, 715883, 9360754, 7519916, 34680591, 38902926, 955591034, 364301268, 7962143004, 5823533647

Basic calculations (n = 20681638)

Multiplication

n×y

n×2	41363276
n×3	62044914
n×4	82726552
n×5	103408190

Division

n÷y

n÷2	10340819
n÷3	6893879.3333333
n÷3	5170409.5
n÷5	4136327.6

Exponentiation

n^y

n²	427730150363044
n³	8.846160131494E+21
n⁴	1.8295308152959E+29
n⁵	3.7837694031795E+36

Nth Root

^y√n

²√n	4547.7068946888
³√n	274.49112725868
⁴√n	67.436688046558
⁵√n	29.048050200047

Divisors of 20681638

1, 2, 10340819, 20681638

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	-20681637	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 20681638 can be divided by 4 positive divisors. The sum of these divisors (counting 20681638) is 1, the average is 0.25.

Base conversion 20681638

Base	System	Value
2	Binary	1001110111001001110100110
3	Ternary	1102220201212121
4	Quaternary	1032321032212
5	Quinary	20243303023
6	Senary	2015140154
8	Octal	116711646
10	Decimal	20681638
12	Duodecimal	6b1465a
16	Hexadecimal	13b93a6
20	Vigesimal	69541i
36	Base36	cba1y

Cryptographic Hash Functions

md5	14a985bd39dbacfc00681b5706c92746
sha1	ae9f107b4f92a4b5ff40faba69ba74ead47fd03d
sha256	6e5247750ea3bc266c8f307c428efcd4a8e8cf65eb40f823350509e5aaa8aef4
sha512	0b2fb01ab1b327df2e006c8d3268ad47ed37e03001b5fc80272587940037cceb636c60a584cac9fac30f528f66921a73496eecf87e76ca2f692bae65e985dad9
ripemd-160	34751a1862993bdba7aeb90188ee5fd503d6d62d

20681638 as geometric shapes

Circle

Radius = n

Diameter	41363276
Circumference	129946564.01001
Area	1.3437538980994E+15

Sphere

Radius = n

Volume	3.7054708908774E+22
Surface area	5.3750155923976E+15
Circumference	129946564.01001

Square

Length = n

Perimeter	82726552
Area	427730150363044
Diagonal	29248252.951691

Cube

Length = n

Surface area	2566380902178264
Volume	8.846160131494E+21
Space diagonal	35821647.799747

Equilateral Triangle

Length = n

Perimeter	62044914
Area	1.8521258808947E+14
Altitude	17910823.899874

Triangular Pyramid

Length = n

Surface area	1.8521258808947E+14
Volume	1.0425299694069E+21
Height	9749417.6505636