21689908 (number)

21689908 is an even 8-digits composite number following 21689907 and preceding 21689909. In scientific notation, it is written as 2.1689908 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 10835640 positive integers (up to 21689908) that are relatively prime to 21689908.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-nine thousand nine hundred eight

Notation

Scientific notation 2.1689908 × 10^7
Engineering notation 2.1689908 × 10^6

Prime Factorization of 21689908

Prime Factorization 2 × 2 × 2287 × 2371

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10844954
Product of the distinct prime numbers

The prime factorization of 21689908 is 2 × 2 × 2287 × 2371. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 31, 46, 867, 600, 6987, 5049, 52919, 61731, 114919, 688295, 742238, 7571573, 32192806, 94690481, 241679351, 402449153, 4278403925, 8324754245

Basic calculations (n = 21689908)

Multiplication

n×y
n×2 43379816
n×3 65069724
n×4 86759632
n×5 108449540

Division

n÷y
n÷2 10844954
n÷3 7229969.3333333
n÷3 5422477
n÷5 4337981.6

Exponentiation

ny
n2 470452109048464
n3 1.0204062963667E+22
n4 2.2132518690815E+29
n5 4.8005229421205E+36

Nth Root

y√n
2√n 4657.2425317993
3√n 278.88119880478
4√n 68.243992642571
5√n 29.325913010026

Divisors of 21689908

1, 2, 4, 2287, 2371, 4574, 4742, 9148, 9484, 5422477, 10844954, 21689908

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 -21689907
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 21689908 can be divided by 12 positive divisors. The sum of these divisors (counting 21689908) is 1, the average is 0.083333333333333.

Base conversion 21689908

Base System Value
2 Binary 1010010101111011000110100
3 Ternary 1111210221221221
4 Quaternary 1102233120310
5 Quinary 21023034113
6 Senary 2052520124
8 Octal 122573064
10 Decimal 21689908
12 Duodecimal 7320044
16 Hexadecimal 14af634
20 Vigesimal 6fb4f8
36 Base36 cww1g

Cryptographic Hash Functions

md5 d6ad5bbd948711a476d2f0d01b0c3a99
sha1 651e9cce615b092350e2c13159bf3499fb13d0de
sha256 ff196f044f5e65d269e0d08de92f430b6f8a54ae22e399fd9f5a061857a0b2a6
sha512 5f6e12629f4faa99d203f7a0a7275c5bfb35d16b4fbc9d5b7ba99b80738f0919963a99b6cf15a1f92153d3216b641f7e65419d390c35c1244b817aadefc6b0ce
ripemd-160 789e775078e873f51a9424ababf7be1c47b8b0ef

21689908 as geometric shapes

Circle

Radius = n
Diameter 43379816
Circumference 136281711.25968
Area 1.4779688896525E+15

Sphere

Radius = n
Volume 4.2742678991233E+22
Surface area 5.9118755586099E+15
Circumference 136281711.25968

Square

Length = n
Perimeter 86759632
Area 470452109048464
Diagonal 30674162.060225

Cube

Length = n
Surface area 2822712654290784
Volume 1.0204062963667E+22
Space diagonal 37568022.667495

Equilateral Triangle

Length = n
Perimeter 65069724
Area 2.0371173884997E+14
Altitude 18784011.333747

Triangular Pyramid

Length = n
Surface area 2.0371173884997E+14
Volume 1.2025603528773E+21
Height 10224720.686742