21493818 (number)

21493818 is an even 8-digits composite number following 21493817 and preceding 21493819. In scientific notation, it is written as 2.1493818 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 6840288 positive integers (up to 21493818) that are relatively prime to 21493818.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand eight hundred eighteen

Notation

Scientific notation 2.1493818 × 10^7
Engineering notation 2.1493818 × 10^6

Prime Factorization of 21493818

Prime Factorization 2 × 9 × 37 × 59 × 547

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21493818
Product of the distinct prime numbers

The prime factorization of 21493818 is 2 × 9 × 37 × 59 × 547. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 25, 8, 346, 127, 6357, 7999, 4373, 23859, 970200, 627041, 5510902, 8081899, 12598474, 40662716, 820491793, 151205357, 4561433890, 9857270929

Basic calculations (n = 21493818)

Multiplication

n×y
n×2 42987636
n×3 64481454
n×4 85975272
n×5 107469090

Division

n÷y
n÷2 10746909
n÷3 7164606
n÷3 5373454.5
n÷5 4298763.6

Exponentiation

ny
n2 461984212217124
n3 9.9298045762682E+21
n4 2.1342941233788E+29
n5 4.5874129446373E+36

Nth Root

y√n
2√n 4636.1425776177
3√n 278.03823465283
4√n 68.08922512129
5√n 29.272695383843

Divisors of 21493818

1, 2, 9, 18, 37, 59, 74, 118, 333, 531, 547, 666, 1062, 1094, 2183, 4366, 4923, 9846, 19647, 20239, 32273, 39294, 40478, 64546, 182151, 290457, 364302, 580914, 1194101, 2388202, 10746909, 21493818

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 -21493817
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 21493818 can be divided by 32 positive divisors. The sum of these divisors (counting 21493818) is 1, the average is 0.03125.

Base conversion 21493818

Base System Value
2 Binary 1010001111111100000111010
3 Ternary 1111102222222100
4 Quaternary 1101333200322
5 Quinary 21000300233
6 Senary 2044404230
8 Octal 121774072
10 Decimal 21493818
12 Duodecimal 7246676
16 Hexadecimal 147f83a
20 Vigesimal 6e6eai
36 Base36 csoqi

Cryptographic Hash Functions

md5 e0c968e94541f8f14294d069e9456676
sha1 35e517b8f4b0ef1e7ebacbbed377d33d09cbc3d0
sha256 c948960516f8cfb834542dac38341a9b933ece36d2efd9d33bc232919aaa5446
sha512 cf9eede198cdc0eca171b429b8caec79129d25eefa71666052f9385f3eeb037ce804eaa718009b30c89d4ec8c4f7016a577bc1c571599cfa01d008b098d2ca91
ripemd-160 8d8d0f860b3666240794fb514d20c6481b6ced5e

21493818 as geometric shapes

Circle

Radius = n
Diameter 42987636
Circumference 135049641.45279
Area 1.4513662071758E+15

Sphere

Radius = n
Volume 4.1593868144515E+22
Surface area 5.8054648287031E+15
Circumference 135049641.45279

Square

Length = n
Perimeter 85975272
Area 461984212217124
Diagonal 30396848.922779

Cube

Length = n
Surface area 2771905273302744
Volume 9.9298045762682E+21
Space diagonal 37228384.824638

Equilateral Triangle

Length = n
Perimeter 64481454
Area 2.0004503196369E+14
Altitude 18614192.412319

Triangular Pyramid

Length = n
Surface area 2.0004503196369E+14
Volume 1.1702386919561E+21
Height 10132282.97426