21808508 (number)

21808508 is an even 8-digits composite number following 21808507 and preceding 21808509. In scientific notation, it is written as 2.1808508 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 10373616 positive integers (up to 21808508) that are relatively prime to 21808508.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1808508 × 10^7
Engineering notation 2.1808508 × 10^6

Prime Factorization of 21808508

Prime Factorization 2 × 2 × 223 × 23 × 1063

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10904254
Product of the distinct prime numbers

The prime factorization of 21808508 is 2 × 2 × 223 × 23 × 1063. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21808508)

Multiplication

n×y
n×2 43617016
n×3 65425524
n×4 87234032
n×5 109042540

Division

n÷y
n÷2 10904254
n÷3 7269502.6666667
n÷3 5452127
n÷5 4361701.6

Exponentiation

ny
n2 475611021186064
n3 1.0372366760424E+22
n4 2.2620584347365E+29
n5 4.9332119470419E+36

Nth Root

y√n
2√n 4669.95802979
3√n 279.38858081845
4√n 68.337091171559
5√n 29.3579138002

Divisors of 21808508

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21808507
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21808508 can be divided by 24 positive divisors. The sum of these divisors (counting 21808508) is 1, the average is 0.041666666666667.

Base conversion 21808508

Base System Value
2 Binary 1010011001100010101111100
3 Ternary 1112000222122112
4 Quaternary 1103030111330
5 Quinary 21040333013
6 Senary 2055233152
8 Octal 123142574
10 Decimal 21808508
12 Duodecimal 73787b8
16 Hexadecimal 14cc57c
20 Vigesimal 6g6158
36 Base36 czfjw

Cryptographic Hash Functions

md5 d85693e9b3edfb4a87befb5a50b7245e
sha1 0c76d2cb36cccd4f0d9c15dd4f1b1be2ab889f75
sha256 7a91c6173c6fc0e3f05237d7b6065f3a267704eb1ee0011552e26f9e56e31e19
sha512 ef226d1ba1b0a58c7e9133aaf06dca1a5611fa72c3be28b74fda7ab8a330f83de98ec4192ed183aba7f27f58688e9af6c88469cd00bc95a47c1ac5cbf686f95a
ripemd-160 e40b69653f8d025860517fc02d1738fa7948d9b1

21808508 as geometric shapes

Circle

Radius = n
Diameter 43617016
Circumference 137026897.03711
Area 1.4941760901245E+15

Sphere

Radius = n
Volume 4.3447668286518E+22
Surface area 5.9767043604979E+15
Circumference 137026897.03711

Square

Length = n
Perimeter 87234032
Area 475611021186064
Diagonal 30841887.788722

Cube

Length = n
Surface area 2853666127116384
Volume 1.0372366760424E+22
Space diagonal 37773443.893272

Equilateral Triangle

Length = n
Perimeter 65425524
Area 2.059456133335E+14
Altitude 18886721.946636

Triangular Pyramid

Length = n
Surface area 2.059456133335E+14
Volume 1.2223951455417E+21
Height 10280629.262907