21508908 (number)

21508908 is an even 8-digits composite number following 21508907 and preceding 21508909. In scientific notation, it is written as 2.1508908 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors. There are 7169632 positive integers (up to 21508908) that are relatively prime to 21508908.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred eight thousand nine hundred eight

Notation

Scientific notation 2.1508908 × 10^7
Engineering notation 2.1508908 × 10^6

Prime Factorization of 21508908

Prime Factorization 2 × 2 × 3 × 1792409

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10754454
Product of the distinct prime numbers

The prime factorization of 21508908 is 2 × 2 × 3 × 1792409. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21508908)

Multiplication

n×y
n×2 43017816
n×3 64526724
n×4 86035632
n×5 107544540

Division

n÷y
n÷2 10754454
n÷3 7169636
n÷3 5377227
n÷5 4301781.6

Exponentiation

ny
n2 462633123352464
n3 9.9507332879408E+21
n4 2.1402940682286E+29
n5 4.6035388206474E+36

Nth Root

y√n
2√n 4637.7697226145
3√n 278.10328615566
4√n 68.101172696324
5√n 29.276804481428

Divisors of 21508908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21508907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21508908 can be divided by 12 positive divisors. The sum of these divisors (counting 21508908) is 1, the average is 0.083333333333333.

Base conversion 21508908

Base System Value
2 Binary 1010010000011001100101100
3 Ternary 1111110202200020
4 Quaternary 1102003030230
5 Quinary 21001241113
6 Senary 2045002140
8 Octal 122031454
10 Decimal 21508908
12 Duodecimal 7253350
16 Hexadecimal 148332c
20 Vigesimal 6e8c58
36 Base36 ct0do

Cryptographic Hash Functions

md5 5d0e8608035629a5c3177c6f8f69be66
sha1 abc3a53fcbd7f11390d6ac270fc8f6d06b5bb137
sha256 e29327c8f0cbb220c9f76e59aa2450513e6c46eb77041137ab3d29f6186df3f4
sha512 15887e3bdd8a432c2daa6f98e9481a193b5fbeaa5aedd5114167f42d95ec64818b0f2a6c9f56550b96ffb259f938cf92cfe211c1d5944b6a195b2eb95396a2de
ripemd-160 2fb507d923eea2e55499b52173b0f70ea7a2ac74

21508908 as geometric shapes

Circle

Radius = n
Diameter 43017816
Circumference 135144454.71908
Area 1.4534048216314E+15

Sphere

Radius = n
Volume 4.1681534126968E+22
Surface area 5.8136192865256E+15
Circumference 135144454.71908

Square

Length = n
Perimeter 86035632
Area 462633123352464
Diagonal 30418189.405435

Cube

Length = n
Surface area 2775798740114784
Volume 9.9507332879408E+21
Space diagonal 37254521.471325

Equilateral Triangle

Length = n
Perimeter 64526724
Area 2.0032601872769E+14
Altitude 18627260.735662

Triangular Pyramid

Length = n
Surface area 2.0032601872769E+14
Volume 1.1727051642803E+21
Height 10139396.468478