21102005 (number)

21102005 is an odd 8-digits composite number following 21102004 and preceding 21102006. In scientific notation, it is written as 2.1102005 × 10^7. The sum of its digits is 11. It has a total of 3 prime factors and 8 positive divisors. There are 16723408 positive integers (up to 21102005) that are relatively prime to 21102005.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred two thousand five

Notation

Scientific notation 2.1102005 × 10^7
Engineering notation 2.1102005 × 10^6

Prime Factorization of 21102005

Prime Factorization 5 × 107 × 39443

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21102005
Product of the distinct prime numbers

The prime factorization of 21102005 is 5 × 107 × 39443. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21102005)

Multiplication

n×y
n×2 42204010
n×3 63306015
n×4 84408020
n×5 105510025

Division

n÷y
n÷2 10551002.5
n÷3 7034001.6666667
n÷3 5275501.25
n÷5 4220401

Exponentiation

ny
n2 445294615020025
n3 9.3966091926256E+21
n4 1.9828729416583E+29
n5 4.1842594729239E+36

Nth Root

y√n
2√n 4593.6918703805
3√n 276.33840116982
4√n 67.77677972861
5√n 29.165185586821

Divisors of 21102005

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 -21102004
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 21102005 can be divided by 8 positive divisors. The sum of these divisors (counting 21102005) is 1, the average is 0.125.

Base conversion 21102005

Base System Value
2 Binary 1010000011111110110110101
3 Ternary 1110201002111202
4 Quaternary 1100133312311
5 Quinary 20400231010
6 Senary 2032142245
8 Octal 120376665
10 Decimal 21102005
12 Duodecimal 7097985
16 Hexadecimal 141fdb5
20 Vigesimal 6bhf05
36 Base36 ckaet

Cryptographic Hash Functions

md5 6d725a06ed050b85ae653bdaaf21e3b8
sha1 24a33963e322e89d7dbc4ad6011769adbcfe43a7
sha256 e71e76ad4c1fcc0930e605d9d5d2b7bdea40246d53dff6960fa693087d2a3334
sha512 cc04b3bdcf794b51c72005a3c07c461ed09407571c2ca38f76c15007043d71db9dc2e1be70e02d3f38e24aa16c3afd9729c3fb4c59bee92b2ec75ed926873968
ripemd-160 2cece59cdd9f2c165c90a27471d3edfd1e4012d7

21102005 as geometric shapes

Circle

Radius = n
Diameter 42204010
Circumference 132587807.76803
Area 1.39893429123E+15

Sphere

Radius = n
Volume 3.9360424544276E+22
Surface area 5.59573716492E+15
Circumference 132587807.76803

Square

Length = n
Perimeter 84408020
Area 445294615020025
Diagonal 29842741.664265

Cube

Length = n
Surface area 2671767690120150
Volume 9.3966091926256E+21
Space diagonal 36549744.801572

Equilateral Triangle

Length = n
Perimeter 63306015
Area 1.9281822438788E+14
Altitude 18274872.400786

Triangular Pyramid

Length = n
Surface area 1.9281822438788E+14
Volume 1.1074010133776E+21
Height 9947580.554755