21493771 (number)

21493771 is an odd 8-digits composite number following 21493770 and preceding 21493772. In scientific notation, it is written as 2.1493771 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 19712160 positive integers (up to 21493771) that are relatively prime to 21493771.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand seven hundred seventy-one

Notation

Scientific notation 2.1493771 × 10^7
Engineering notation 2.1493771 × 10^6

Prime Factorization of 21493771

Prime Factorization 13 × 157 × 10531

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21493771
Product of the distinct prime numbers

The prime factorization of 21493771 is 13 × 157 × 10531. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21493771)

Multiplication

n×y
n×2 42987542
n×3 64481313
n×4 85975084
n×5 107468855

Division

n÷y
n÷2 10746885.5
n÷3 7164590.3333333
n÷3 5373442.75
n÷5 4298754.2

Exponentiation

ny
n2 461982191800441
n3 9.9297394366368E+21
n4 2.1342754554074E+29
n5 4.5873627889447E+36

Nth Root

y√n
2√n 4636.1375087458
3√n 278.03803199291
4√n 68.089187899004
5√n 29.272682581856

Divisors of 21493771

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 -21493770
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 21493771 can be divided by 8 positive divisors. The sum of these divisors (counting 21493771) is 1, the average is 0.125.

Base conversion 21493771

Base System Value
2 Binary 1010001111111100000001011
3 Ternary 1111102222220121
4 Quaternary 1101333200023
5 Quinary 21000300041
6 Senary 2044404111
8 Octal 121774013
10 Decimal 21493771
12 Duodecimal 7246637
16 Hexadecimal 147f80b
20 Vigesimal 6e6e8b
36 Base36 csop7

Cryptographic Hash Functions

md5 1705023904be12a8fe717c9e871c2d05
sha1 4696a99e6b0fd6d7380728d2a6f1c5be013ff973
sha256 3f86e394f2c9b915b70212936bbba10e490161f8f3a5b6c30e87d5613b6ea517
sha512 4fb38f5d067ca05185a7c5ee3b077d77972d6ebcac13b3cbc10437393c266c621c83ed0fc43657c61f959c1dad32a708f4ba2b6dcac8d6080829ac2d1fcf0e62
ripemd-160 8ea4bf3b6dfcc4d02dbe84684bc6a30ef1c4289e

21493771 as geometric shapes

Circle

Radius = n
Diameter 42987542
Circumference 135049346.14308
Area 1.4513598598496E+15

Sphere

Radius = n
Volume 4.1593595288265E+22
Surface area 5.8054394393983E+15
Circumference 135049346.14308

Square

Length = n
Perimeter 85975084
Area 461982191800441
Diagonal 30396782.454742

Cube

Length = n
Surface area 2771893150802646
Volume 9.9297394366368E+21
Space diagonal 37228303.418251

Equilateral Triangle

Length = n
Perimeter 64481313
Area 2.000441570976E+14
Altitude 18614151.709125

Triangular Pyramid

Length = n
Surface area 2.000441570976E+14
Volume 1.1702310151769E+21
Height 10132260.818247