12921805 (number)

12921805 is an odd 8-digits composite number following 12921804 and preceding 12921806. In scientific notation, it is written as 1.2921805 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 9039168 positive integers (up to 12921805) that are relatively prime to 12921805.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.2921805 × 10^7
Engineering notation 1.2921805 × 10^6

Prime Factorization of 12921805

Prime Factorization 5 × 13 × 19 × 10463

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 12921805
Product of the distinct prime numbers

The prime factorization of 12921805 is 5 × 13 × 19 × 10463. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 98, 38, 851, 582, 7932, 7781, 86776, 34015, 444989, 813062, 6348647, 8244559, 11515775, 47622762, 933279912, 57406453, 6140389476, 5776727883

Basic calculations (n = 12921805)

Multiplication

n×y
n×2 25843610
n×3 38765415
n×4 51687220
n×5 64609025

Division

n÷y
n÷2 6460902.5
n÷3 4307268.3333333
n÷3 3230451.25
n÷5 2584361

Exponentiation

ny
n2 166973044458025
n3 2.1575931207429E+21
n4 2.7879997575582E+28
n5 3.6025989207214E+35

Nth Root

y√n
2√n 3594.6912245699
3√n 234.66107775336
4√n 59.95574388305
5√n 26.440193951467

Divisors of 12921805

1, 5, 13, 19, 65, 95, 247, 1235, 10463, 52315, 136019, 198797, 680095, 993985, 2584361, 12921805

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12921804
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12921805 can be divided by 16 positive divisors. The sum of these divisors (counting 12921805) is 1, the average is 0.0625.

Base conversion 12921805

Base System Value
2 Binary 110001010010101111001101
3 Ternary 220022111101101
4 Quaternary 301102233031
5 Quinary 11301444210
6 Senary 1140543101
8 Octal 61225715
10 Decimal 12921805
12 Duodecimal 43b1a91
16 Hexadecimal c52bcd
20 Vigesimal 40f4a5
36 Base36 7oyj1

Cryptographic Hash Functions

md5 217a33e5ef9b979ca9e34ca57b8b94c4
sha1 f2d524121a12d195f85bd227e096e4c91ede709f
sha256 bdc308e1dd24d705ff225e832f21c4c8391d04696aeef9738eadee6cf387aace
sha512 16fe65f927e82b35aba961a32beac5ad320f64b32b430ceba79ccbfb935bee6978b5181168c97171d2b201d066fe2997910533d06d66f7fa604e8b45cbb7a9c3
ripemd-160 0bc9d25c1822af9c387a9c06986adf9da8cdabd5

12921805 as geometric shapes

Circle

Radius = n
Diameter 25843610
Circumference 81190095.31824
Area 5.2456128981685E+14

Sphere

Radius = n
Volume 9.0377049300825E+21
Surface area 2.0982451592674E+15
Circumference 81190095.31824

Square

Length = n
Perimeter 51687220
Area 166973044458025
Diagonal 18274191.88134

Cube

Length = n
Surface area 1001838266748150
Volume 2.1575931207429E+21
Space diagonal 22381222.785498

Equilateral Triangle

Length = n
Perimeter 38765415
Area 72301449123939
Altitude 11190611.392749

Triangular Pyramid

Length = n
Surface area 72301449123939
Volume 2.5427478778646E+20
Height 6091397.2937802