21461387 (number)

21461387 is an odd 8-digits composite number following 21461386 and preceding 21461388. In scientific notation, it is written as 2.1461387 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21437640 positive integers (up to 21461387) that are relatively prime to 21461387.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred sixty-one thousand three hundred eighty-seven

Notation

Scientific notation 2.1461387 × 10^7
Engineering notation 2.1461387 × 10^6

Prime Factorization of 21461387

Prime Factorization 941 × 22807

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21461387
Product of the distinct prime numbers

The prime factorization of 21461387 is 941 × 22807. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21461387)

Multiplication

n×y
n×2 42922774
n×3 64384161
n×4 85845548
n×5 107306935

Division

n÷y
n÷2 10730693.5
n÷3 7153795.6666667
n÷3 5365346.75
n÷5 4292277.4

Exponentiation

ny
n2 460591131963769
n3 9.8849245318425E+21
n4 2.1214419084367E+29
n5 4.5529085794978E+36

Nth Root

y√n
2√n 4632.6436297216
3√n 277.898324704
4√n 68.063526427313
5√n 29.263856411907

Divisors of 21461387

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21461386
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21461387 can be divided by 4 positive divisors. The sum of these divisors (counting 21461387) is 1, the average is 0.25.

Base conversion 21461387

Base System Value
2 Binary 1010001110111100110001011
3 Ternary 1111101100111012
4 Quaternary 1101313212023
5 Quinary 20443231022
6 Senary 2043554135
8 Octal 121674613
10 Decimal 21461387
12 Duodecimal 722b94b
16 Hexadecimal 147798b
20 Vigesimal 6e2d97
36 Base36 crzpn

Cryptographic Hash Functions

md5 a2c51384b288456180cca77abc5515d3
sha1 d7dfd1326b45a355cd8a2c246899058d6b51b3fc
sha256 a4b9aa6bd9de6b463db046b40421bb56f6294b76ce25920260dc85138ce3558e
sha512 56287992ab153421fed9543f8e5c22bb695c0f3f5567e90d410ced161edded66e3ef5e724391e1616527afa20accf7a61fb79c40c28cfae3c95bca3253cb046b
ripemd-160 3b799a47ca2dae82d84566e41f8987bafeebfc84

21461387 as geometric shapes

Circle

Radius = n
Diameter 42922774
Circumference 134845871.47009
Area 1.446989716486E+15

Sphere

Radius = n
Volume 4.1405875054035E+22
Surface area 5.7879588659439E+15
Circumference 134845871.47009

Square

Length = n
Perimeter 85845548
Area 460591131963769
Diagonal 30350984.562738

Cube

Length = n
Surface area 2763546791782614
Volume 9.8849245318425E+21
Space diagonal 37172212.684898

Equilateral Triangle

Length = n
Perimeter 64384161
Area 1.9944181051923E+14
Altitude 18586106.342449

Triangular Pyramid

Length = n
Surface area 1.9944181051923E+14
Volume 1.1649495279972E+21
Height 10116994.854246