21031979 (number)

21031979 is an odd 8-digits prime number following 21031978 and preceding 21031980. In scientific notation, it is written as 2.1031979 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 21031978 positive integers (up to 21031979) that are relatively prime to 21031979.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred seventy-nine

Notation

Scientific notation 2.1031979 × 10^7
Engineering notation 2.1031979 × 10^6

Prime Factorization of 21031979

Prime Factorization 21031979

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21031979
Product of the distinct prime numbers

The prime factorization of 21031979 is 21031979. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 10, 63, 17, 67, 25, 3634, 9655, 48846, 26024, 4298, 838061, 551247, 81675, 34304253, 31539751, 618995243, 946192152, 6113537342, 5583429786

Basic calculations (n = 21031979)

Multiplication

n×y
n×2 42063958
n×3 63095937
n×4 84127916
n×5 105159895

Division

n÷y
n÷2 10515989.5
n÷3 7010659.6666667
n÷3 5257994.75
n÷5 4206395.8

Exponentiation

ny
n2 442344140656441
n3 9.3033726770593E+21
n4 1.9566833877309E+29
n5 4.1152923920404E+36

Nth Root

y√n
2√n 4586.0635625774
3√n 276.03239047852
4√n 67.720481115962
5√n 29.145803185627

Divisors of 21031979

1, 21031979

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21031980
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10515990
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4586.0636716034
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999049067
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031979 can be divided by 2 positive divisors. The sum of these divisors (counting 21031979) is 21031980, the average is 10515990.

Base conversion 21031979

Base System Value
2 Binary 1010000001110110000101011
3 Ternary 1110120112110012
4 Quaternary 1100032300223
5 Quinary 20341010404
6 Senary 2030442135
8 Octal 120166053
10 Decimal 21031979
12 Duodecimal 706334b
16 Hexadecimal 140ec2b
20 Vigesimal 6b8jij
36 Base36 cisdn

Cryptographic Hash Functions

md5 ce9a357a07c20bf14ff19a99dbd6c7a5
sha1 a99da84f85c807eb0ef3d682cf21f91cd58d30bf
sha256 00f950206b8dda56962bf0109ae91baa7702991351a99943faa0f78e6037aa11
sha512 c131f3cfdbdefc4694ffa1cd31a7a484603a2f5f30d1c9b4701753f909ebec97a2f3b4d847d755400a5c5b16b1c92cec36d445d5575d1ea880d646050405fa48
ripemd-160 f610a9eaa2a0b9f3118fe1a9f1d2660002f8a3b4

21031979 as geometric shapes

Circle

Radius = n
Diameter 42063958
Circumference 132147821.43371
Area 1.3896651026448E+15

Sphere

Radius = n
Volume 3.8969876341143E+22
Surface area 5.5586604105791E+15
Circumference 132147821.43371

Square

Length = n
Perimeter 84127916
Area 442344140656441
Diagonal 29743709.945346

Cube

Length = n
Surface area 2654064843938646
Volume 9.3033726770593E+21
Space diagonal 36428456.211722

Equilateral Triangle

Length = n
Perimeter 63095937
Area 1.9154063151184E+14
Altitude 18214228.105861

Triangular Pyramid

Length = n
Surface area 1.9154063151184E+14
Volume 1.0964129846424E+21
Height 9914569.981782