21129904 (number)

21129904 is an even 8-digits composite number following 21129903 and preceding 21129905. In scientific notation, it is written as 2.1129904 × 10^7. The sum of its digits is 28. It has a total of 6 prime factors and 20 positive divisors. There are 10545920 positive integers (up to 21129904) that are relatively prime to 21129904.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-nine thousand nine hundred four

Notation

Scientific notation 2.1129904 × 10^7
Engineering notation 2.1129904 × 10^6

Prime Factorization of 21129904

Prime Factorization 2 × 2 × 2 × 2 × 881 × 1499

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2641238
Product of the distinct prime numbers

The prime factorization of 21129904 is 2 × 2 × 2 × 2 × 881 × 1499. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 5, 80, 1, 520, 904, 8445, 5755, 22191, 65631, 705121, 367991, 3723104, 1331679, 87838161, 92076143, 916029647, 649978687, 8386240678, 2443223243

Basic calculations (n = 21129904)

Multiplication

n×y
n×2 42259808
n×3 63389712
n×4 84519616
n×5 105649520

Division

n÷y
n÷2 10564952
n÷3 7043301.3333333
n÷3 5282476
n÷5 4225980.8

Exponentiation

ny
n2 446472843049216
n3 9.433928312237E+21
n4 1.9933799958045E+29
n5 4.2119927946869E+36

Nth Root

y√n
2√n 4596.7275316251
3√n 276.46013004404
4√n 67.799170582132
5√n 29.172893380908

Divisors of 21129904

1, 2, 4, 8, 16, 881, 1499, 1762, 2998, 3524, 5996, 7048, 11992, 14096, 23984, 1320619, 2641238, 5282476, 10564952, 21129904

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21129903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21129904 can be divided by 20 positive divisors. The sum of these divisors (counting 21129904) is 1, the average is 0.05.

Base conversion 21129904

Base System Value
2 Binary 1010000100110101010110000
3 Ternary 1110202111210001
4 Quaternary 1100212222300
5 Quinary 20402124104
6 Senary 2032515344
8 Octal 120465260
10 Decimal 21129904
12 Duodecimal 70abb54
16 Hexadecimal 1426ab0
20 Vigesimal 6c14f4
36 Base36 ckvxs

Cryptographic Hash Functions

md5 795368373e48162056cb2e372b6d2727
sha1 c8fffefa61c0aa1a01e57e951e529c2d4c441ad4
sha256 b944d2df1ef60d51011f2a99d4680bf4462d1c1795100ffcb9fab827433e3b6b
sha512 e6b8a6b3180bea385ed3a2c92d25919829d87dcd28933607916e55d3255d44c2f98194da1d66c8aa3284b798dff6a72f3aba88a60a2d1e565860d2fc82b043a4
ripemd-160 d07ead2b57f3d52c5d5bb27a20ef620aa765c648

21129904 as geometric shapes

Circle

Radius = n
Diameter 42259808
Circumference 132763102.35492
Area 1.4026358037508E+15

Sphere

Radius = n
Volume 3.9516746506955E+22
Surface area 5.6105432150031E+15
Circumference 132763102.35492

Square

Length = n
Perimeter 84519616
Area 446472843049216
Diagonal 29882196.808442

Cube

Length = n
Surface area 2678837058295296
Volume 9.433928312237E+21
Space diagonal 36598067.287053

Equilateral Triangle

Length = n
Perimeter 63389712
Area 1.9332841209024E+14
Altitude 18299033.643526

Triangular Pyramid

Length = n
Surface area 1.9332841209024E+14
Volume 1.1117991138018E+21
Height 9960732.2694805