21008840 (number)

21008840 is an even 8-digits composite number following 21008839 and preceding 21008841. In scientific notation, it is written as 2.1008840 × 10^7. The sum of its digits is 23. It has a total of 5 prime factors and 16 positive divisors. There are 8403520 positive integers (up to 21008840) that are relatively prime to 21008840.

Interesting facts

Basic properties

Name

Name twenty-one million eight thousand eight hundred forty

Notation

Scientific notation 2.1008840 × 10^7
Engineering notation 2.1008840 × 10^6

Prime Factorization of 21008840

Prime Factorization 2 × 2 × 2 × 5 × 525221

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5252210
Product of the distinct prime numbers

The prime factorization of 21008840 is 2 × 2 × 2 × 5 × 525221. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 8, 58, 14, 981, 26, 8462, 6579, 44855, 63618, 326548, 843807, 3188121, 2836946, 64203247, 26882384, 602786708, 246862418, 7703145660, 4505951250

Basic calculations (n = 21008840)

Multiplication

n×y
n×2 42017680
n×3 63026520
n×4 84035360
n×5 105044200

Division

n÷y
n÷2 10504420
n÷3 7002946.6666667
n÷3 5252210
n÷5 4201768

Exponentiation

ny
n2 441371358145600
n3 9.2727002438636E+21
n4 1.9480867579129E+29
n5 4.0927043003111E+36

Nth Root

y√n
2√n 4583.5401165475
3√n 275.9311247307
4√n 67.701847216656
5√n 29.139387225216

Divisors of 21008840

1, 2, 4, 5, 8, 10, 20, 40, 525221, 1050442, 2100884, 2626105, 4201768, 5252210, 10504420, 21008840

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 -21008839
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 21008840 can be divided by 16 positive divisors. The sum of these divisors (counting 21008840) is 1, the average is 0.0625.

Base conversion 21008840

Base System Value
2 Binary 1010000001001000111001000
3 Ternary 1110112100201012
4 Quaternary 1100021013020
5 Quinary 20334240330
6 Senary 2030143052
8 Octal 120110710
10 Decimal 21008840
12 Duodecimal 7051a88
16 Hexadecimal 14091c8
20 Vigesimal 6b6220
36 Base36 ciaiw

Cryptographic Hash Functions

md5 8944117b2ebf9b74ded4e30b96103c1e
sha1 8d68782309ba860754affe6e5571bc6be1983832
sha256 5da2d3312eddb4764d2b0d14c612755485c6af265b967ab24414943a8e7d5241
sha512 dd7f77d7d3f4ebb04017044591943636d2b6c159666a1a30522dda1db96cfb2e5d31523a31aaeb0881763abd9605cadcfbc7b0555c4a2085238ba5cede97f70d
ripemd-160 1b79ad55e97653d4408e117dd2a9e83a223ad91b

21008840 as geometric shapes

Circle

Radius = n
Diameter 42017680
Circumference 132002434.80889
Area 1.3866090162552E+15

Sphere

Radius = n
Volume 3.8841395953416E+22
Surface area 5.5464360650207E+15
Circumference 132002434.80889

Square

Length = n
Perimeter 84035360
Area 441371358145600
Diagonal 29710986.457726

Cube

Length = n
Surface area 2648228148873600
Volume 9.2727002438636E+21
Space diagonal 36388378.288085

Equilateral Triangle

Length = n
Perimeter 63026520
Area 1.9111940432846E+14
Altitude 18194189.144043

Triangular Pyramid

Length = n
Surface area 1.9111940432846E+14
Volume 1.0927982037244E+21
Height 9903662.1525755