21242487 (number)

21242487 is an odd 8-digits composite number following 21242486 and preceding 21242488. In scientific notation, it is written as 2.1242487 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 12096480 positive integers (up to 21242487) that are relatively prime to 21242487.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-two thousand four hundred eighty-seven

Notation

Scientific notation 2.1242487 × 10^7
Engineering notation 2.1242487 × 10^6

Prime Factorization of 21242487

Prime Factorization 3 × 7 × 317 × 3191

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21242487
Product of the distinct prime numbers

The prime factorization of 21242487 is 3 × 7 × 317 × 3191. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 86, 61, 429, 54, 4153, 1198, 53915, 38714, 392706, 577525, 9331648, 6989346, 70029645, 36887962, 14060839, 967447105, 5929636207, 3837963735

Basic calculations (n = 21242487)

Multiplication

n×y
n×2 42484974
n×3 63727461
n×4 84969948
n×5 106212435

Division

n÷y
n÷2 10621243.5
n÷3 7080829
n÷3 5310621.75
n÷5 4248497.4

Exponentiation

ny
n2 451243253945169
n3 9.585528955768E+21
n4 2.0362047423102E+29
n5 4.3254052767864E+36

Nth Root

y√n
2√n 4608.9572573414
3√n 276.95026628216
4√n 67.889301493987
5√n 29.203914764803

Divisors of 21242487

1, 3, 7, 21, 317, 951, 2219, 3191, 6657, 9573, 22337, 67011, 1011547, 3034641, 7080829, 21242487

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 -21242486
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 21242487 can be divided by 16 positive divisors. The sum of these divisors (counting 21242487) is 1, the average is 0.0625.

Base conversion 21242487

Base System Value
2 Binary 1010001000010001001110111
3 Ternary 1110222020012210
4 Quaternary 1101002021313
5 Quinary 20414224422
6 Senary 2035144503
8 Octal 121021167
10 Decimal 21242487
12 Duodecimal 7145133
16 Hexadecimal 1442277
20 Vigesimal 6cf647
36 Base36 cnat3

Cryptographic Hash Functions

md5 e23941ea0c9f3ba89c8cfba618e9b030
sha1 c99d0b954128ed849dfe2ce7bf66e912fab84890
sha256 77f4a05a97685b47191b171603c9c496a5b2fb5d7b477363e45e34e2dacc1d8a
sha512 ab9ce58c0954275ac67dd7d32064cbe316ffef7ff462b7880d72f6a8d7de4eb5f63807dd6f34f3fb60fef5bb6331126b140b11d49589338ab4d6fd76fddf5af3
ripemd-160 0021784410d86f87bd2673c85acf282a62a5d3d4

21242487 as geometric shapes

Circle

Radius = n
Diameter 42484974
Circumference 133470482.20635
Area 1.4176224915761E+15

Sphere

Radius = n
Volume 4.0151769797617E+22
Surface area 5.6704899663044E+15
Circumference 133470482.20635

Square

Length = n
Perimeter 84969948
Area 451243253945169
Diagonal 30041413.213934

Cube

Length = n
Surface area 2707459523671014
Volume 9.585528955768E+21
Space diagonal 36793066.763121

Equilateral Triangle

Length = n
Perimeter 63727461
Area 1.9539406060143E+14
Altitude 18396533.381561

Triangular Pyramid

Length = n
Surface area 1.9539406060143E+14
Volume 1.1296654209806E+21
Height 10013804.404645