21082005 (number)

21082005 is an odd 8-digits composite number following 21082004 and preceding 21082006. In scientific notation, it is written as 2.1082005 × 10^7. The sum of its digits is 18. It has a total of 5 prime factors and 32 positive divisors. There are 9634464 positive integers (up to 21082005) that are relatively prime to 21082005.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-two thousand five

Notation

Scientific notation 2.1082005 × 10^7
Engineering notation 2.1082005 × 10^6

Prime Factorization of 21082005

Prime Factorization 3 × 9 × 5 × 49 × 3187

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21082005
Product of the distinct prime numbers

The prime factorization of 21082005 is 3 × 9 × 5 × 49 × 3187. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 4, 20, 20, 60, 514, 1474, 1524, 81516, 61635, 258145, 607359, 9594837, 7373468, 94470912, 50218140, 256753425, 366548173, 3240276786, 404136944

Basic calculations (n = 21082005)

Multiplication

n×y
n×2 42164010
n×3 63246015
n×4 84328020
n×5 105410025

Division

n÷y
n÷2 10541002.5
n÷3 7027335
n÷3 5270501.25
n÷5 4216401

Exponentiation

ny
n2 444450934820025
n3 9.3699168301304E+21
n4 1.9753663346239E+29
n5 4.1644682943374E+36

Nth Root

y√n
2√n 4591.5144560374
3√n 276.25107115874
4√n 67.760714695444
5√n 29.15965506994

Divisors of 21082005

1, 3, 5, 9, 15, 27, 45, 49, 135, 147, 245, 441, 735, 1323, 2205, 3187, 6615, 9561, 15935, 28683, 47805, 86049, 143415, 156163, 430245, 468489, 780815, 1405467, 2342445, 4216401, 7027335, 21082005

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21082004
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21082005 can be divided by 32 positive divisors. The sum of these divisors (counting 21082005) is 1, the average is 0.03125.

Base conversion 21082005

Base System Value
2 Binary 1010000011010111110010101
3 Ternary 1110200002002000
4 Quaternary 1100122332111
5 Quinary 20344111010
6 Senary 2031505513
8 Octal 120327625
10 Decimal 21082005
12 Duodecimal 7088299
16 Hexadecimal 141af95
20 Vigesimal 6bf505
36 Base36 cjuz9

Cryptographic Hash Functions

md5 50b3ce407554b304431d81ac7a6c52ea
sha1 c86ec8447837f69bef463ed12a9aeb8d9dc87b39
sha256 5fbc3788c083f6549138b321072a19ac9483525c7042e01e963de4469993a4e9
sha512 56ee83a7d7c09f6a638c28624c8b856fe7537f2ddae9adda0ebf891046aec4e78e8c56f3a6bfa9dd551d3d9a191224e698082d2fe12fa2a1d07ee2fba3e2ae64
ripemd-160 414cf2b67c68cd047eca110031365220523dd3c6

21082005 as geometric shapes

Circle

Radius = n
Diameter 42164010
Circumference 132462144.06189
Area 1.3962837917117E+15

Sphere

Radius = n
Volume 3.9248615837714E+22
Surface area 5.5851351668468E+15
Circumference 132462144.06189

Square

Length = n
Perimeter 84328020
Area 444450934820025
Diagonal 29814457.393017

Cube

Length = n
Surface area 2666705608920150
Volume 9.3699168301304E+21
Space diagonal 36515103.785421

Equilateral Triangle

Length = n
Perimeter 63246015
Area 1.9245290014494E+14
Altitude 18257551.892711

Triangular Pyramid

Length = n
Surface area 1.9245290014494E+14
Volume 1.1042552882899E+21
Height 9938152.4643391