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

21107987 (number)

21107987 is an odd 8-digits prime number following 21107986 and preceding 21107988. In scientific notation, it is written as 2.1107987 × 10^7. The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors. There are 21107986 positive integers (up to 21107987) that are relatively prime to 21107987.

Interesting facts

21107987 has 2 divisors, whose sum is 21107988
The reverse of 21107987 is 78970112
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

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

Notation

Scientific notation	2.1107987 × 10^7
Engineering notation	2.1107987 × 10^6

Prime Factorization of 21107987

Prime Factorization 21107987

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21107987	Product of the distinct prime numbers

The prime factorization of 21107987 is 21107987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 2, 77, 67, 166, 616, 9117, 5562, 74844, 92073, 912686, 804146, 3557775, 815547, 21746668, 29453417, 380055831, 755565500, 6986083217, 8207849559

Basic calculations (n = 21107987)

Multiplication

n×y

n×2	42215974
n×3	63323961
n×4	84431948
n×5	105539935

Division

n÷y

n÷2	10553993.5
n÷3	7035995.6666667
n÷3	5276996.75
n÷5	4221597.4

Exponentiation

n^y

n²	445547115192169
n³	9.4046027153638E+21
n⁴	1.9851223185606E+29
n⁵	4.1901936093588E+36

Nth Root

^y√n

²√n	4594.3429345228
³√n	276.36451085525
⁴√n	67.781582561363
⁵√n	29.166838949717

Divisors of 21107987

1, 21107987

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21107988	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10553994	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4594.3430433523	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999052491	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21107987 can be divided by 2 positive divisors. The sum of these divisors (counting 21107987) is 21107988, the average is 10553994.

Base conversion 21107987

Base	System	Value
2	Binary	1010000100001010100010011
3	Ternary	1110201101201022
4	Quaternary	1100201110103
5	Quinary	20400423422
6	Senary	2032230055
8	Octal	120412423
10	Decimal	21107987
12	Duodecimal	709b32b
16	Hexadecimal	1421513
20	Vigesimal	6bi9j7
36	Base36	ckf0z

Cryptographic Hash Functions

md5	1c90b7d2becb623211ee97158e6e5280
sha1	9cf746b1225526ff6c54142cbc4d860b96070811
sha256	5a160717b70996aef278b76ebd5d60bc047db4c4a4dd705851346944e320817a
sha512	24c11d24a9949f711f66388c0927af52339fb521fd54e6e2229258146d3ac35ef7fb173e939b865b1c83b2b6a2badc02eeb75876679cf97fa15987eadf417b57
ripemd-160	5e392ace6bef56b8379b4be7058ab2c78deb2d9b

21107987 as geometric shapes

Circle

Radius = n

Diameter	42215974
Circumference	132625393.78254
Area	1.3997275439158E+15

Sphere

Radius = n

Volume	3.9393907734023E+22
Surface area	5.5989101756634E+15
Circumference	132625393.78254

Square

Length = n

Perimeter	84431948
Area	445547115192169
Diagonal	29851201.489795

Cube

Length = n

Surface area	2673282691153014
Volume	9.4046027153638E+21
Space diagonal	36560105.929503

Equilateral Triangle

Length = n

Perimeter	63323961
Area	1.9292756016964E+14
Altitude	18280052.964752

Triangular Pyramid

Length = n

Surface area	1.9292756016964E+14
Volume	1.1083430590665E+21
Height	9950400.4965983