21105855 (number)

21105855 is an odd 8-digits composite number following 21105854 and preceding 21105856. In scientific notation, it is written as 2.1105855 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 11221056 positive integers (up to 21105855) that are relatively prime to 21105855.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105855 × 10^7
Engineering notation 2.1105855 × 10^6

Prime Factorization of 21105855

Prime Factorization 5 × 3 × 3 × 1013 × 463

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7035285
Product of the distinct prime numbers

The prime factorization of 21105855 is 5 × 3 × 3 × 1013 × 463. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 46, 66, 710, 381, 8086, 3282, 70630, 49806, 934238, 192825, 7344013, 9430851, 1178010, 77027044, 202868245, 730963154, 4722086967, 3248878532

Basic calculations (n = 21105855)

Multiplication

n×y
n×2 42211710
n×3 63317565
n×4 84423420
n×5 105529275

Division

n÷y
n÷2 10552927.5
n÷3 7035285
n÷3 5276463.75
n÷5 4221171

Exponentiation

ny
n2 445457115281025
n3 9.4017532838396E+21
n4 1.9843204155449E+29
n5 4.1880778964031E+36

Nth Root

y√n
2√n 4594.1109041903
3√n 276.35520586285
4√n 67.77987093666
5√n 29.166249729976

Divisors of 21105855

1, 3, 5, 9, 15, 45, 463, 1013, 1389, 2315, 3039, 4167, 5065, 6945, 9117, 15195, 20835, 45585, 469019, 1407057, 2345095, 4221171, 7035285, 21105855

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 -21105854
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 21105855 can be divided by 24 positive divisors. The sum of these divisors (counting 21105855) is 1, the average is 0.041666666666667.

Base conversion 21105855

Base System Value
2 Binary 1010000100000110010111111
3 Ternary 1110201021210100
4 Quaternary 1100200302333
5 Quinary 20400341410
6 Senary 2032212143
8 Octal 120406277
10 Decimal 21105855
12 Duodecimal 709a053
16 Hexadecimal 1420cbf
20 Vigesimal 6bi4cf
36 Base36 ckddr

Cryptographic Hash Functions

md5 79b4a007f91c5c8ea87f434ba4599f0b
sha1 7046563aa85e2e151b97e902e52a0f90601dabb6
sha256 389bb2e924986f8edab1adada4d3036887f7e9fd409e852b6e3c6242f6df3de9
sha512 a7c1eba2edb3c4cb24b349ba76ab00161d32ead921edcbebd87e6902df31ae8452781af73df8a134d6293fea69fffd587d36262e7075b7b8ec9ec910c7375675
ripemd-160 f7f0d31dafc41e511d44a0d8b10e25d0fea6cc9c

21105855 as geometric shapes

Circle

Radius = n
Diameter 42211710
Circumference 132611998.03146
Area 1.3994448008562E+15

Sphere

Radius = n
Volume 3.9381972063166E+22
Surface area 5.5977792034247E+15
Circumference 132611998.03146

Square

Length = n
Perimeter 84423420
Area 445457115281025
Diagonal 29848186.38648

Cube

Length = n
Surface area 2672742691686150
Volume 9.4017532838396E+21
Space diagonal 36556413.197182

Equilateral Triangle

Length = n
Perimeter 63317565
Area 1.9288858906495E+14
Altitude 18278206.598591

Triangular Pyramid

Length = n
Surface area 1.9288858906495E+14
Volume 1.108007250341E+21
Height 9949395.46216