21688085 (number)

21688085 is an odd 8-digits composite number following 21688084 and preceding 21688086. In scientific notation, it is written as 2.1688085 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 16665600 positive integers (up to 21688085) that are relatively prime to 21688085.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-eight thousand eighty-five

Notation

Scientific notation 2.1688085 × 10^7
Engineering notation 2.1688085 × 10^6

Prime Factorization of 21688085

Prime Factorization 5 × 29 × 373 × 401

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21688085
Product of the distinct prime numbers

The prime factorization of 21688085 is 5 × 29 × 373 × 401. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 77, 97, 982, 253, 9349, 6387, 48609, 67290, 770789, 645036, 9940915, 7874528, 54645232, 39068126, 224453128, 256548719, 7371408908, 9446457713

Basic calculations (n = 21688085)

Multiplication

n×y
n×2 43376170
n×3 65064255
n×4 86752340
n×5 108440425

Division

n÷y
n÷2 10844042.5
n÷3 7229361.6666667
n÷3 5422021.25
n÷5 4337617

Exponentiation

ny
n2 470373030967225
n3 1.0201490277325E+22
n4 2.2125078826129E+29
n5 4.7985059021279E+36

Nth Root

y√n
2√n 4657.0468110166
3√n 278.87338542187
4√n 68.242558649399
5√n 29.325420034797

Divisors of 21688085

1, 5, 29, 145, 373, 401, 1865, 2005, 10817, 11629, 54085, 58145, 149573, 747865, 4337617, 21688085

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 -21688084
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 21688085 can be divided by 16 positive divisors. The sum of these divisors (counting 21688085) is 1, the average is 0.0625.

Base conversion 21688085

Base System Value
2 Binary 1010010101110111100010101
3 Ternary 1111210212110102
4 Quaternary 1102232330111
5 Quinary 21023004320
6 Senary 2052503445
8 Octal 122567425
10 Decimal 21688085
12 Duodecimal 731ab85
16 Hexadecimal 14aef15
20 Vigesimal 6fb045
36 Base36 cwumt

Cryptographic Hash Functions

md5 90fa3e34a5896452f694b6fd69ca68b5
sha1 6423e23a724c224b07cae0f56e8a1cd5412e9a49
sha256 f9398678a7225c0fb418eea3878cdb01ef12602c475c92a03ff828b4f5aaa818
sha512 c6b74911bc44ea7cfc16458636e0f7c70ed558ab080d3c49cc7df0ab63722ef36ce269fe3beb629371cfab943d516146b458c56559a897400e2e455d13c97095
ripemd-160 25e9b14d15b2a33dd3b6ecef2b073d2e2e8071ab

21688085 as geometric shapes

Circle

Radius = n
Diameter 43376170
Circumference 136270257.01286
Area 1.4777204585334E+15

Sphere

Radius = n
Volume 4.2731902547882E+22
Surface area 5.9108818341336E+15
Circumference 136270257.01286

Square

Length = n
Perimeter 86752340
Area 470373030967225
Diagonal 30671583.9489

Cube

Length = n
Surface area 2822238185803350
Volume 1.0201490277325E+22
Space diagonal 37564865.138872

Equilateral Triangle

Length = n
Perimeter 65064255
Area 2.0367749703635E+14
Altitude 18782432.569436

Triangular Pyramid

Length = n
Surface area 2.0367749703635E+14
Volume 1.2022571588842E+21
Height 10223861.3163