21105912 (number)

21105912 is an even 8-digits composite number following 21105911 and preceding 21105913. In scientific notation, it is written as 2.1105912 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 16 positive divisors. There are 7035296 positive integers (up to 21105912) that are relatively prime to 21105912.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105912 × 10^7
Engineering notation 2.1105912 × 10^6

Prime Factorization of 21105912

Prime Factorization 2 × 2 × 2 × 3 × 879413

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5276478
Product of the distinct prime numbers

The prime factorization of 21105912 is 2 × 2 × 2 × 3 × 879413. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 25, 64, 270, 365, 9651, 2842, 9036, 91211, 573487, 61555, 2150081, 5029497, 63049605, 78495997, 239785913, 350244685, 8934681460, 4727445203

Basic calculations (n = 21105912)

Multiplication

n×y
n×2 42211824
n×3 63317736
n×4 84423648
n×5 105529560

Division

n÷y
n÷2 10552956
n÷3 7035304
n÷3 5276478
n÷5 4221182.4

Exponentiation

ny
n2 445459521351744
n3 9.401829457212E+21
n4 1.9843418516292E+29
n5 4.1881344498404E+36

Nth Root

y√n
2√n 4594.1171077803
3√n 276.35545464425
4√n 67.77991669942
5√n 29.166265483657

Divisors of 21105912

1, 2, 3, 4, 6, 8, 12, 24, 879413, 1758826, 2638239, 3517652, 5276478, 7035304, 10552956, 21105912

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 -21105911
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 21105912 can be divided by 16 positive divisors. The sum of these divisors (counting 21105912) is 1, the average is 0.0625.

Base conversion 21105912

Base System Value
2 Binary 1010000100000110011111000
3 Ternary 1110201021212110
4 Quaternary 1100200303320
5 Quinary 20400342122
6 Senary 2032212320
8 Octal 120406370
10 Decimal 21105912
12 Duodecimal 709a0a0
16 Hexadecimal 1420cf8
20 Vigesimal 6bi4fc
36 Base36 ckdfc

Cryptographic Hash Functions

md5 06f9052f10cdaebb6e7db7900729be94
sha1 2ad32011da25a65463deb5512a8981d7db3dd95e
sha256 89a5a3ecf57934ee4153b903cc420d690a4f8eb293594cc18ce9328a7857cd7d
sha512 9dbbabf970c51fd0d5573bf298dc7a13a381f35574b7906c00cc0d8b8ecae323d6e96c7265da2834339fc1e64987910f90e232ea52a1c4cf5dc2a57a5848b861
ripemd-160 d1f7adafb17e3bad01a7c63c00456538adf3e15d

21105912 as geometric shapes

Circle

Radius = n
Diameter 42211824
Circumference 132612356.17303
Area 1.3994523597503E+15

Sphere

Radius = n
Volume 3.9382291137442E+22
Surface area 5.5978094390011E+15
Circumference 132612356.17303

Square

Length = n
Perimeter 84423648
Area 445459521351744
Diagonal 29848266.996653

Cube

Length = n
Surface area 2672757128110464
Volume 9.401829457212E+21
Space diagonal 36556511.924078

Equilateral Triangle

Length = n
Perimeter 63317736
Area 1.9288963092413E+14
Altitude 18278255.962039

Triangular Pyramid

Length = n
Surface area 1.9288963092413E+14
Volume 1.108016227459E+21
Height 9949422.3322177