21308979 (number)

21308979 is an odd 8-digits composite number following 21308978 and preceding 21308980. In scientific notation, it is written as 2.1308979 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14146560 positive integers (up to 21308979) that are relatively prime to 21308979.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eight thousand nine hundred seventy-nine

Notation

Scientific notation 2.1308979 × 10^7
Engineering notation 2.1308979 × 10^6

Prime Factorization of 21308979

Prime Factorization 3 × 241 × 29473

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21308979
Product of the distinct prime numbers

The prime factorization of 21308979 is 3 × 241 × 29473. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 2, 12, 81, 612, 124, 3037, 4171, 17208, 84457, 245688, 667107, 3520644, 8700357, 63263972, 68659146, 798355314, 460980465, 9068674045, 4601244565

Basic calculations (n = 21308979)

Multiplication

n×y
n×2 42617958
n×3 63926937
n×4 85235916
n×5 106544895

Division

n÷y
n÷2 10654489.5
n÷3 7102993
n÷3 5327244.75
n÷5 4261795.8

Exponentiation

ny
n2 454072586022441
n3 9.6758232000279E+21
n4 2.0618191337711E+29
n5 4.3935260623326E+36

Nth Root

y√n
2√n 4616.1649667229
3√n 277.23892985559
4√n 67.942365036278
5√n 29.222174396826

Divisors of 21308979

1, 3, 241, 723, 29473, 88419, 7102993, 21308979

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 -21308978
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 21308979 can be divided by 8 positive divisors. The sum of these divisors (counting 21308979) is 1, the average is 0.125.

Base conversion 21308979

Base System Value
2 Binary 1010001010010011000110011
3 Ternary 1111002121102110
4 Quaternary 1101102120303
5 Quinary 20423341404
6 Senary 2040420403
8 Octal 121223063
10 Decimal 21308979
12 Duodecimal 7177703
16 Hexadecimal 1452633
20 Vigesimal 6d3c8j
36 Base36 coq43

Cryptographic Hash Functions

md5 0f50964b07b04bb9f278b5a461cbbb2f
sha1 5ff44f9004225627b629922383a465fc6e654f79
sha256 cc79d3b981992ef652762594a8a8086fda1ab5cdcfba2acdbd71453a52436a5a
sha512 7869d6c7e7c21fb3adc5b90c0aa93738d24b24c45f3ee21a27039db3c634278d4d1684532cc7afada6deccc678180d03277142a088e22bd1ef783f1b7246e429
ripemd-160 1578d8861b93c63b8fc17f261b6d18105c7916ff

21308979 as geometric shapes

Circle

Radius = n
Diameter 42617958
Circumference 133888263.7638
Area 1.4265111004446E+15

Sphere

Radius = n
Volume 4.0529993443522E+22
Surface area 5.7060444017785E+15
Circumference 133888263.7638

Square

Length = n
Perimeter 85235916
Area 454072586022441
Diagonal 30135447.102123

Cube

Length = n
Surface area 2724435516134646
Volume 9.6758232000279E+21
Space diagonal 36908234.285418

Equilateral Triangle

Length = n
Perimeter 63926937
Area 1.9661919732876E+14
Altitude 18454117.142709

Triangular Pyramid

Length = n
Surface area 1.9661919732876E+14
Volume 1.140306699717E+21
Height 10045149.034041