21461855 (number)

21461855 is an odd 8-digits composite number following 21461854 and preceding 21461856. In scientific notation, it is written as 2.1461855 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 17130400 positive integers (up to 21461855) that are relatively prime to 21461855.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1461855 × 10^7
Engineering notation 2.1461855 × 10^6

Prime Factorization of 21461855

Prime Factorization 5 × 461 × 9311

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21461855
Product of the distinct prime numbers

The prime factorization of 21461855 is 5 × 461 × 9311. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21461855)

Multiplication

n×y
n×2 42923710
n×3 64385565
n×4 85847420
n×5 107309275

Division

n÷y
n÷2 10730927.5
n÷3 7153951.6666667
n÷3 5365463.75
n÷5 4292371

Exponentiation

ny
n2 460611220041025
n3 9.8855712158936E+21
n4 2.1216269602768E+29
n5 4.5534050185552E+36

Nth Root

y√n
2√n 4632.6941405623
3√n 277.90034469569
4√n 68.063897482897
5√n 29.263984039868

Divisors of 21461855

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21461854
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21461855 can be divided by 8 positive divisors. The sum of these divisors (counting 21461855) is 1, the average is 0.125.

Base conversion 21461855

Base System Value
2 Binary 1010001110111101101011111
3 Ternary 1111101101010112
4 Quaternary 1101313231133
5 Quinary 20443234410
6 Senary 2044000235
8 Octal 121675537
10 Decimal 21461855
12 Duodecimal 723007b
16 Hexadecimal 1477b5f
20 Vigesimal 6e2ecf
36 Base36 cs02n

Cryptographic Hash Functions

md5 280e2ea267432065662e4d2346ffbdab
sha1 e0450b54faa178c10df1c5fcb17bcffcc05e4f22
sha256 f94a8a65c5f08bd696f917405765b3e295bad03c66486726ae5729495a2acd7d
sha512 0ce0d850097318463d06a04b0fcc2e2fb73e96bd315d324b2c2544c02da588532c405b05728c7200638bd81505452db8f8181a4962220c623d110933bc17990b
ripemd-160 59dee12515af463527ca9c39fd1eba1830b83843

21461855 as geometric shapes

Circle

Radius = n
Diameter 42923710
Circumference 134848812.00082
Area 1.4470528250419E+15

Sphere

Radius = n
Volume 4.1408583877853E+22
Surface area 5.7882113001677E+15
Circumference 134848812.00082

Square

Length = n
Perimeter 85847420
Area 460611220041025
Diagonal 30351646.414685

Cube

Length = n
Surface area 2763667320246150
Volume 9.8855712158936E+21
Space diagonal 37173023.284676

Equilateral Triangle

Length = n
Perimeter 64385565
Area 1.9945050891184E+14
Altitude 18586511.642338

Triangular Pyramid

Length = n
Surface area 1.9945050891184E+14
Volume 1.1650257404435E+21
Height 10117215.471562