21491715 (number)

21491715 is an odd 8-digits composite number following 21491714 and preceding 21491716. In scientific notation, it is written as 2.1491715 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 9765504 positive integers (up to 21491715) that are relatively prime to 21491715.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand seven hundred fifteen

Notation

Scientific notation 2.1491715 × 10^7
Engineering notation 2.1491715 × 10^6

Prime Factorization of 21491715

Prime Factorization 3 × 197 × 35 × 1039

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491715
Product of the distinct prime numbers

The prime factorization of 21491715 is 3 × 197 × 35 × 1039. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 23, 91, 803, 626, 691, 1110, 81834, 46277, 348089, 898006, 5281229, 5773320, 75114371, 32192246, 147763164, 697195173, 3198098782, 1480862346

Basic calculations (n = 21491715)

Multiplication

n×y
n×2 42983430
n×3 64475145
n×4 85966860
n×5 107458575

Division

n÷y
n÷2 10745857.5
n÷3 7163905
n÷3 5372928.75
n÷5 4298343

Exponentiation

ny
n2 461893813641225
n3 9.9268902030403E+21
n4 2.1334589508003E+29
n5 4.58516917348E+36

Nth Root

y√n
2√n 4635.9157671381
3√n 278.02916641007
4√n 68.087559562215
5√n 29.272122541104

Divisors of 21491715

1, 3, 35, 105, 197, 591, 1039, 3117, 6895, 20685, 36365, 109095, 204683, 614049, 7163905, 21491715

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 -21491714
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 21491715 can be divided by 16 positive divisors. The sum of these divisors (counting 21491715) is 1, the average is 0.0625.

Base conversion 21491715

Base System Value
2 Binary 1010001111111000000000011
3 Ternary 1111102220002110
4 Quaternary 1101333000003
5 Quinary 21000213330
6 Senary 2044350403
8 Octal 121770003
10 Decimal 21491715
12 Duodecimal 7245403
16 Hexadecimal 147f003
20 Vigesimal 6e695f
36 Base36 csn43

Cryptographic Hash Functions

md5 96d0f69e535ba450f31bcb77f726ecbe
sha1 bd349d889c456402ba24082e6e79fe83dce085ed
sha256 3ad24e7fe2c9630290fc054aef23aca89bbe6e8438cb3c37b9496e7d9a422bff
sha512 8a21b269e7aec7a787b2d9850336b35453c6d6d70e31b724fce5806399d50e67531f9025e0b185ec6e22c61db6fa389522c187ae7edc5bcc36d7d33460e0cdab
ripemd-160 f86ed1b8b506e49902c4a63912daf77ea8468759

21491715 as geometric shapes

Circle

Radius = n
Diameter 42983430
Circumference 135036427.91409
Area 1.4510822116738E+15

Sphere

Radius = n
Volume 4.1581660446485E+22
Surface area 5.8043288466954E+15
Circumference 135036427.91409

Square

Length = n
Perimeter 85966860
Area 461893813641225
Diagonal 30393874.831657

Cube

Length = n
Surface area 2771362881847350
Volume 9.9268902030403E+21
Space diagonal 37224742.32179

Equilateral Triangle

Length = n
Perimeter 64475145
Area 2.0000588823209E+14
Altitude 18612371.160895

Triangular Pyramid

Length = n
Surface area 2.0000588823209E+14
Volume 1.1698952297774E+21
Height 10131291.610552