21531418 (number)

21531418 is an even 8-digits composite number following 21531417 and preceding 21531419. In scientific notation, it is written as 2.1531418 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 10104256 positive integers (up to 21531418) that are relatively prime to 21531418.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand four hundred eighteen

Notation

Scientific notation 2.1531418 × 10^7
Engineering notation 2.1531418 × 10^6

Prime Factorization of 21531418

Prime Factorization 2 × 17 × 503 × 1259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21531418
Product of the distinct prime numbers

The prime factorization of 21531418 is 2 × 17 × 503 × 1259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 53, 24, 207, 800, 5320, 5442, 73045, 97663, 889041, 7988, 9146075, 5143620, 36580393, 67977362, 132691416, 53046638, 871809013, 4767260148

Basic calculations (n = 21531418)

Multiplication

n×y
n×2 43062836
n×3 64594254
n×4 86125672
n×5 107657090

Division

n÷y
n÷2 10765709
n÷3 7177139.3333333
n÷3 5382854.5
n÷5 4306283.6

Exponentiation

ny
n2 463601961090724
n3 9.9820076098641E+21
n4 2.1492677832717E+29
n5 4.6276783035555E+36

Nth Root

y√n
2√n 4640.1959010369
3√n 278.20026802656
4√n 68.118983411652
5√n 29.282929805545

Divisors of 21531418

1, 2, 17, 34, 503, 1006, 1259, 2518, 8551, 17102, 21403, 42806, 633277, 1266554, 10765709, 21531418

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 -21531417
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 21531418 can be divided by 16 positive divisors. The sum of these divisors (counting 21531418) is 1, the average is 0.0625.

Base conversion 21531418

Base System Value
2 Binary 1010010001000101100011010
3 Ternary 1111111220112221
4 Quaternary 1102020230122
5 Quinary 21003001133
6 Senary 2045254254
8 Octal 122105432
10 Decimal 21531418
12 Duodecimal 726438a
16 Hexadecimal 1488b1a
20 Vigesimal 6eb8ai
36 Base36 cthqy

Cryptographic Hash Functions

md5 0346999d7794768e1ae9d3d0217ca034
sha1 3998d5f3cef3829477207b6194a1488ba06fad51
sha256 a617bd54954c40bede099ee1b60e6b0e370679e40a3c88524ed87f0ba89ec8b8
sha512 dc0875ecfe4531985c9713572b32f3023eecb5649a3e528092137d1c9e5ed4580ebccdae5f35c4a76e4bcabb44fbea837c1005008acddfe5715f6b57496e7f10
ripemd-160 26af747806526b2f865c2bcfa61381ab0d77681b

21531418 as geometric shapes

Circle

Radius = n
Diameter 43062836
Circumference 135285889.22034
Area 1.4564485151524E+15

Sphere

Radius = n
Volume 4.1812535700302E+22
Surface area 5.8257940606098E+15
Circumference 135285889.22034

Square

Length = n
Perimeter 86125672
Area 463601961090724
Diagonal 30450023.352724

Cube

Length = n
Surface area 2781611766544344
Volume 9.9820076098641E+21
Space diagonal 37293509.935003

Equilateral Triangle

Length = n
Perimeter 64594254
Area 2.0074553777443E+14
Altitude 18646754.967502

Triangular Pyramid

Length = n
Surface area 2.0074553777443E+14
Volume 1.1763908784651E+21
Height 10150007.784241