21708 (number)

21708 is an even 5-digits composite number following 21707 and preceding 21709. In scientific notation, it is written as 2.1708 × 10^4. The sum of its digits is 18. It has a total of 5 prime factors and 18 positive divisors. There are 7128 positive integers (up to 21708) that are relatively prime to 21708.

Interesting facts

Basic properties

Name

Name twenty-one thousand seven hundred eight

Notation

Scientific notation 2.1708 × 10^4
Engineering notation 2.1708 × 10^3

Prime Factorization of 21708

Prime Factorization 2 × 2 × 9 × 9 × 67

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1206
Product of the distinct prime numbers

The prime factorization of 21708 is 2 × 2 × 9 × 9 × 67. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 1, 68, 27, 786, 82, 2004, 4043, 15307, 75852, 126547, 831549, 8349314, 5581521, 31819446, 99821444, 935783020, 938699196, 4609002632, 4525038134

Basic calculations (n = 21708)

Multiplication

n×y
n×2 43416
n×3 65124
n×4 86832
n×5 108540

Division

n÷y
n÷2 10854
n÷3 7236
n÷3 5427
n÷5 4341.6

Exponentiation

ny
n2 471237264
n3 10229618526912
n4 222064558982205696
n5 4.8205774463857E+21

Nth Root

y√n
2√n 147.3363498937
3√n 27.895871744374
4√n 12.138218563434
5√n 7.3675647709754

Divisors of 21708

1, 2, 4, 9, 18, 36, 67, 81, 134, 162, 268, 324, 603, 1206, 2412, 5427, 10854, 21708

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21707
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21708 can be divided by 18 positive divisors. The sum of these divisors (counting 21708) is 1, the average is 0.055555555555556.

Base conversion 21708

Base System Value
2 Binary 101010011001100
3 Ternary 1002210000
4 Quaternary 11103030
5 Quinary 1143313
6 Senary 244300
8 Octal 52314
10 Decimal 21708
12 Duodecimal 10690
16 Hexadecimal 54cc
20 Vigesimal 2e58
36 Base36 gr0

Cryptographic Hash Functions

md5 66b6ce05f3da543dd3e67c8ab0684504
sha1 6d78a4408c18644a986c21e0b52f87e887c0c3c6
sha256 cceb8a1f7db3c333555e2705bd94422a9d6edb561d0d0747958251a78a73b699
sha512 c5a549c0dc0cb3da85e8abb14e73f59e20d8aabd7a27dba69b16726996946a0eaf38e7a6f482d626e9e1443d527d7ed65c03682853420447516ff4f6711859a1
ripemd-160 08fa0fa5500ca86ca4a8871949988f4671fc0de8

21708 as geometric shapes

Circle

Radius = n
Diameter 43416
Circumference 136395.38664825
Area 1480435526.6802

Sphere

Radius = n
Volume 42849725884230
Surface area 5921742106.7206
Circumference 136395.38664825

Square

Length = n
Perimeter 86832
Area 471237264
Diagonal 30699.748011995

Cube

Length = n
Surface area 2827423584
Volume 10229618526912
Space diagonal 37599.358930705

Equilateral Triangle

Length = n
Perimeter 65124
Area 204051720.91694
Altitude 18799.679465353

Triangular Pyramid

Length = n
Surface area 204051720.91694
Volume 1205572104888.5
Height 10233.249337332