21156918 (number)

21156918 is an even 8-digits composite number following 21156917 and preceding 21156919. In scientific notation, it is written as 2.1156918 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 6389856 positive integers (up to 21156918) that are relatively prime to 21156918.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred fifty-six thousand nine hundred eighteen

Notation

Scientific notation 2.1156918 × 10^7
Engineering notation 2.1156918 × 10^6

Prime Factorization of 21156918

Prime Factorization 2 × 3 × 23 × 19 × 8069

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21156918
Product of the distinct prime numbers

The prime factorization of 21156918 is 2 × 3 × 23 × 19 × 8069. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 3, 13, 17, 307, 379, 4350, 1416, 92686, 97047, 915994, 826381, 7056756, 9813018, 36102390, 39667080, 793121965, 94843220, 6671133343, 529970666

Basic calculations (n = 21156918)

Multiplication

n×y
n×2 42313836
n×3 63470754
n×4 84627672
n×5 105784590

Division

n÷y
n÷2 10578459
n÷3 7052306
n÷3 5289229.5
n÷5 4231383.6

Exponentiation

ny
n2 447615179258724
n3 9.4701576431321E+21
n4 2.0035934870282E+29
n5 4.238986311039E+36

Nth Root

y√n
2√n 4599.6649878007
3√n 276.57789542437
4√n 67.820830043584
5√n 29.180348917261

Divisors of 21156918

1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 114, 138, 437, 874, 1311, 2622, 8069, 16138, 24207, 48414, 153311, 185587, 306622, 371174, 459933, 556761, 919866, 1113522, 3526153, 7052306, 10578459, 21156918

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21156917
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21156918 can be divided by 32 positive divisors. The sum of these divisors (counting 21156918) is 1, the average is 0.03125.

Base conversion 21156918

Base System Value
2 Binary 1010000101101010000110110
3 Ternary 1110210212211120
4 Quaternary 1100231100312
5 Quinary 20404010133
6 Senary 2033244410
8 Octal 120552066
10 Decimal 21156918
12 Duodecimal 7103706
16 Hexadecimal 142d436
20 Vigesimal 6c4c5i
36 Base36 clgs6

Cryptographic Hash Functions

md5 888c18e998c7f198060c9f7f61cfec01
sha1 9ed47f670cf2d31897626bd3062013e0292dc2c1
sha256 d8e55a406c4a9ea45be49c401eaf2e11dac6e9280d20ce1206a74af65305d122
sha512 af9d8f709d04ab590ed9deb36bcd39a71395b407ef9e1cbdd09ace6d15d60fcd14517331c1f6c68cc24a55584b55298a79aa3a1dd42df5ea6437926df1d0e330
ripemd-160 671401cc78717fc7700678046e18ea9ba70ecf67

21156918 as geometric shapes

Circle

Radius = n
Diameter 42313836
Circumference 132932836.3228
Area 1.4062245587945E+15

Sphere

Radius = n
Volume 3.9668503573335E+22
Surface area 5.6248982351779E+15
Circumference 132932836.3228

Square

Length = n
Perimeter 84627672
Area 447615179258724
Diagonal 29920400.373615

Cube

Length = n
Surface area 2685691075552344
Volume 9.4701576431321E+21
Space diagonal 36644856.907569

Equilateral Triangle

Length = n
Perimeter 63470754
Area 1.9382305817879E+14
Altitude 18322428.453784

Triangular Pyramid

Length = n
Surface area 1.9382305817879E+14
Volume 1.1160687813941E+21
Height 9973466.7912052