21493855 (number)

21493855 is an odd 8-digits composite number following 21493854 and preceding 21493856. In scientific notation, it is written as 2.1493855 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 16623360 positive integers (up to 21493855) that are relatively prime to 21493855.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand eight hundred fifty-five

Notation

Scientific notation 2.1493855 × 10^7
Engineering notation 2.1493855 × 10^6

Prime Factorization of 21493855

Prime Factorization 5 × 223 × 37 × 521

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21493855
Product of the distinct prime numbers

The prime factorization of 21493855 is 5 × 223 × 37 × 521. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 51, 32, 134, 208, 1306, 9971, 40640, 16448, 719803, 775913, 6374189, 6402482, 98568916, 90632468, 164994785, 265636311, 2338184068, 941819541

Basic calculations (n = 21493855)

Multiplication

n×y
n×2 42987710
n×3 64481565
n×4 85975420
n×5 107469275

Division

n÷y
n÷2 10746927.5
n÷3 7164618.3333333
n÷3 5373463.75
n÷5 4298771

Exponentiation

ny
n2 461985802761025
n3 9.9298558566041E+21
n4 2.1343088195275E+29
n5 4.5874524292145E+36

Nth Root

y√n
2√n 4636.1465680024
3√n 278.03839419342
4√n 68.089254423898
5√n 29.272705461987

Divisors of 21493855

1, 5, 37, 185, 223, 521, 1115, 2605, 8251, 19277, 41255, 96385, 116183, 580915, 4298771, 21493855

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 -21493854
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 21493855 can be divided by 16 positive divisors. The sum of these divisors (counting 21493855) is 1, the average is 0.0625.

Base conversion 21493855

Base System Value
2 Binary 1010001111111100001011111
3 Ternary 1111110000000201
4 Quaternary 1101333201133
5 Quinary 21000300410
6 Senary 2044404331
8 Octal 121774137
10 Decimal 21493855
12 Duodecimal 72466a7
16 Hexadecimal 147f85f
20 Vigesimal 6e6ecf
36 Base36 csorj

Cryptographic Hash Functions

md5 017e941bbaa7578933a09f0651dc717d
sha1 e562f0287f18e7d59a5d281a0975d2acd24514e3
sha256 6815d23d808eebb4dd8c348ad7138abd3777c7408369a6aca37a630622ed3303
sha512 aae0b9cff3f8f2c0c10fa46e1ab835ae34f1d01d3ea87359c17c100ed35a140c7ae01c67313f45356f9948db2fc10abed422ab92dc90e5098bb3a88beaa89b19
ripemd-160 08e662e595f191831f4014875f74d6d0beb5e35f

21493855 as geometric shapes

Circle

Radius = n
Diameter 42987710
Circumference 135049873.93065
Area 1.4513712040168E+15

Sphere

Radius = n
Volume 4.1594082947084E+22
Surface area 5.8054848160673E+15
Circumference 135049873.93065

Square

Length = n
Perimeter 85975420
Area 461985802761025
Diagonal 30396901.248681

Cube

Length = n
Surface area 2771914816566150
Volume 9.9298558566041E+21
Space diagonal 37228448.910518

Equilateral Triangle

Length = n
Perimeter 64481565
Area 2.000457206894E+14
Altitude 18614224.455259

Triangular Pyramid

Length = n
Surface area 2.000457206894E+14
Volume 1.1702447354016E+21
Height 10132300.416227