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

20807987 (number)

20807987 is an odd 8-digits prime number following 20807986 and preceding 20807988. In scientific notation, it is written as 2.0807987 × 10^7. The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors. There are 20807986 positive integers (up to 20807987) that are relatively prime to 20807987.

Interesting facts

20807987 has 2 divisors, whose sum is 20807988
The reverse of 20807987 is 78970802
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

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

Notation

Scientific notation	2.0807987 × 10^7
Engineering notation	2.0807987 × 10^6

Prime Factorization of 20807987

Prime Factorization 20807987

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20807987	Product of the distinct prime numbers

The prime factorization of 20807987 is 20807987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 2, 21, 20, 502, 828, 6747, 1495, 11748, 17840, 894582, 467187, 1439379, 4693363, 13566983, 14050059, 6703110, 916931293, 364550671, 5440425824

Basic calculations (n = 20807987)

Multiplication

n×y

n×2	41615974
n×3	62423961
n×4	83231948
n×5	104039935

Division

n÷y

n÷2	10403993.5
n÷3	6935995.6666667
n÷3	5201996.75
n÷5	4161597.4

Exponentiation

n^y

n²	432972322992169
n³	9.0092824681809E+21
n⁴	1.8746503247724E+29
n⁵	3.9007699587409E+36

Nth Root

^y√n

²√n	4561.5772491541
³√n	275.04896979173
⁴√n	67.539449576926
⁵√n	29.083456061063

Divisors of 20807987

1, 20807987

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20807988	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10403994	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4561.5773587653	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999038831	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20807987 can be divided by 2 positive divisors. The sum of these divisors (counting 20807987) is 20807988, the average is 10403994.

Base conversion 20807987

Base	System	Value
2	Binary	1001111011000000100110011
3	Ternary	1110011011012012
4	Quaternary	1033120010303
5	Quinary	20311323422
6	Senary	2021553135
8	Octal	117300463
10	Decimal	20807987
12	Duodecimal	6b757ab
16	Hexadecimal	13d8133
20	Vigesimal	6a0jj7
36	Base36	cdzjn

Cryptographic Hash Functions

md5	3336fd6d358f5550dc92478dbff44f47
sha1	2801987d33d0dd6f445c562cf9f659c833d6bb2d
sha256	59898680eb3972cca2ac1fdacff8f491e20833672b0a45a4fb8c62ffd4b20b62
sha512	95a60f2793ec7959809d23cbb3d664556aef6bd0afbd7da241d0264e8155077238800ae16c33ddb31ff2a1e33b2fc9675ce3ba6aa7bc90191ed4ae8e72c9033e
ripemd-160	24ef7e36b08d3b42d6d56b9cbb90eb740c32a451

20807987 as geometric shapes

Circle

Radius = n

Diameter	41615974
Circumference	130740438.19038
Area	1.3602226691199E+15

Sphere

Radius = n

Volume	3.773799415487E+22
Surface area	5.4408906764796E+15
Circumference	130740438.19038

Square

Length = n

Perimeter	83231948
Area	432972322992169
Diagonal	29426937.421083

Cube

Length = n

Surface area	2597833937953014
Volume	9.0092824681809E+21
Space diagonal	36040490.687233

Equilateral Triangle

Length = n

Perimeter	62423961
Area	1.8748251542339E+14
Altitude	18020245.343616

Triangular Pyramid

Length = n

Surface area	1.8748251542339E+14
Volume	1.061754121146E+21
Height	9808979.140361