21091408 (number)

21091408 is an even 8-digits composite number following 21091407 and preceding 21091409. In scientific notation, it is written as 2.1091408 × 10^7. The sum of its digits is 25. It has a total of 7 prime factors and 40 positive divisors. There are 9417600 positive integers (up to 21091408) that are relatively prime to 21091408.

Interesting facts

Basic properties

Name

Name twenty-one million ninety-one thousand four hundred eight

Notation

Scientific notation 2.1091408 × 10^7
Engineering notation 2.1091408 × 10^6

Prime Factorization of 21091408

Prime Factorization 2 × 2 × 2 × 2 × 13 × 31 × 3271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2636426
Product of the distinct prime numbers

The prime factorization of 21091408 is 2 × 2 × 2 × 2 × 13 × 31 × 3271. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 7, 12, 43, 657, 813, 1272, 9489, 25695, 9728, 43169, 729200, 477301, 8536368, 44706404, 53253145, 211741477, 101691452, 1082098653, 247054938

Basic calculations (n = 21091408)

Multiplication

n×y
n×2 42182816
n×3 63274224
n×4 84365632
n×5 105457040

Division

n÷y
n÷2 10545704
n÷3 7030469.3333333
n÷3 5272852
n÷5 4218281.6

Exponentiation

ny
n2 444847491422464
n3 9.3824599393677E+21
n4 1.9788929062486E+29
n5 4.1737637673995E+36

Nth Root

y√n
2√n 4592.5382959753
3√n 276.29213623968
4√n 67.768269093842
5√n 29.16225576501

Divisors of 21091408

1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 3271, 6448, 6542, 13084, 26168, 42523, 52336, 85046, 101401, 170092, 202802, 340184, 405604, 680368, 811208, 1318213, 1622416, 2636426, 5272852, 10545704, 21091408

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21091407
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21091408 can be divided by 40 positive divisors. The sum of these divisors (counting 21091408) is 1, the average is 0.025.

Base conversion 21091408

Base System Value
2 Binary 1010000011101010001010000
3 Ternary 1110200112222021
4 Quaternary 1100131101100
5 Quinary 20344411113
6 Senary 2032021224
8 Octal 120352120
10 Decimal 21091408
12 Duodecimal 7091814
16 Hexadecimal 141d450
20 Vigesimal 6bg8a8
36 Base36 ck28g

Cryptographic Hash Functions

md5 df47dc959d0e0b186cbfc886bbd57b17
sha1 9e67baea12f6ec0ad5ae49f303877885b4619b61
sha256 52e15cfef83b2fc86afe94ff2205ef1beac5c0ca61b98d45c0201235c9301bd9
sha512 bcc248e17985a12e3d21a22dec64c477d3bf4c4bde4a880344bab88420d5867e6e7fced06e2a63fe990ed0759d5f4a2079e3bd636536d83f0ffe2c237e9a118e
ripemd-160 f292ff5a42e4709ec8e6689595d51ece65dc9196

21091408 as geometric shapes

Circle

Radius = n
Diameter 42182816
Circumference 132521224.85333
Area 1.3975296110207E+15

Sphere

Radius = n
Volume 3.9301156290824E+22
Surface area 5.5901184440826E+15
Circumference 132521224.85333

Square

Length = n
Perimeter 84365632
Area 444847491422464
Diagonal 29827755.243144

Cube

Length = n
Surface area 2669084948534784
Volume 9.3824599393677E+21
Space diagonal 36531390.259165

Equilateral Triangle

Length = n
Perimeter 63274224
Area 1.9262461419082E+14
Altitude 18265695.129582

Triangular Pyramid

Length = n
Surface area 1.9262461419082E+14
Volume 1.1057335078897E+21
Height 9942585.0810481