21461645 (number)

21461645 is an odd 8-digits composite number following 21461644 and preceding 21461646. In scientific notation, it is written as 2.1461645 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 16346880 positive integers (up to 21461645) that are relatively prime to 21461645.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred sixty-one thousand six hundred forty-five

Notation

Scientific notation 2.1461645 × 10^7
Engineering notation 2.1461645 × 10^6

Prime Factorization of 21461645

Prime Factorization 5 × 23 × 431 × 433

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21461645
Product of the distinct prime numbers

The prime factorization of 21461645 is 5 × 23 × 431 × 433. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 63, 84, 105, 286, 1974, 2257, 31679, 47855, 83834, 907460, 517365, 5550423, 96968308, 77667186, 903149932, 386260959, 2605205769, 8856767587

Basic calculations (n = 21461645)

Multiplication

n×y
n×2 42923290
n×3 64384935
n×4 85846580
n×5 107308225

Division

n÷y
n÷2 10730822.5
n÷3 7153881.6666667
n÷3 5365411.25
n÷5 4292329

Exponentiation

ny
n2 460602206106025
n3 9.8852810336643E+21
n4 2.1215439226974E+29
n5 4.5531822520838E+36

Nth Root

y√n
2√n 4632.6714755096
3√n 277.89943829279
4√n 68.063730984347
5√n 29.263926771186

Divisors of 21461645

1, 5, 23, 115, 431, 433, 2155, 2165, 9913, 9959, 49565, 49795, 186623, 933115, 4292329, 21461645

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 -21461644
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 21461645 can be divided by 16 positive divisors. The sum of these divisors (counting 21461645) is 1, the average is 0.0625.

Base conversion 21461645

Base System Value
2 Binary 1010001110111101010001101
3 Ternary 1111101100211202
4 Quaternary 1101313222031
5 Quinary 20443233040
6 Senary 2043555245
8 Octal 121675215
10 Decimal 21461645
12 Duodecimal 722bb25
16 Hexadecimal 1477a8d
20 Vigesimal 6e2e25
36 Base36 crzwt

Cryptographic Hash Functions

md5 f59471e85e2ff24edfcdf1f755fa0002
sha1 d54e3e189a5521cda63e115130c2419a5de0cdea
sha256 4acf0b8500ff0fb6bf414149d6918c51efb13fbb34ffb385c8f57108fe40a58d
sha512 b2c5ba3e5251acb72bfc457435d9407ef0a88d03eea51c61ec765c28886468e9adafa8781752bd5bb91d4e3b904f070d4ebbc55fa1b93028e4592100bf223617
ripemd-160 41ef150ba8eb9a92ac61a03c7b188a27d91261e7

21461645 as geometric shapes

Circle

Radius = n
Diameter 42923290
Circumference 134847492.5319
Area 1.4470245069299E+15

Sphere

Radius = n
Volume 4.1407368365374E+22
Surface area 5.7880980277198E+15
Circumference 134847492.5319

Square

Length = n
Perimeter 85846580
Area 460602206106025
Diagonal 30351349.429837

Cube

Length = n
Surface area 2763613236636150
Volume 9.8852810336643E+21
Space diagonal 37172659.554007

Equilateral Triangle

Length = n
Perimeter 64384935
Area 1.9944660576349E+14
Altitude 18586329.777003

Triangular Pyramid

Length = n
Surface area 1.9944660576349E+14
Volume 1.1649915421398E+21
Height 10117116.476612