21102705 is an odd 8-digits composite number following 21102704
and preceding 21102706 . In scientific notation, it is written as 2.1102705 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 10388736 positive integers (up to 21102705) that are relatively prime to 21102705.
21102705 has 24 divisors, whose sum is 39392808
The reverse of 21102705 is 50720112
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one hundred two thousand seven hundred five
Scientific notation
2.1102705 × 10^7
Engineering notation
2.1102705 × 10^6
Prime Factorization
5 × 3 × 3 × 13 × 36073
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7034235
Product of the distinct prime numbers
The prime factorization of 21102705 is 5 × 3 × 3 × 13 × 36073.
Since it has a total of 5 prime factors.
1 , 3 , 62 , 69 , 140 , 309 , 6028 , 4990 , 28935 , 22707 , 91733 , 53723 , 9732912 , 8464433 , 76685086 , 62018617 , 844810698 , 656977581 , 1820199033 , 165003949
n×2
42205410
n×3
63308115
n×4
84410820
n×5
105513525
n÷2
10551352.5
n÷3
7034235
n÷3
5275676.25
n÷5
4220541
n2
445324158317025
n3
9.3975443423375E+21
n4
1.9831360598077E+29
n5
4.1849535244984E+36
2 √n
4593.768061189
3 √n
276.34145672058
4 √n
67.777341797897
5 √n
29.165379078947
1 , 3 , 5 , 9 , 13 , 15 , 39 , 45 , 65 , 117 , 195 , 585 , 36073 , 108219 , 180365 , 324657 , 468949 , 541095 , 1406847 , 1623285 , 2344745 , 4220541 , 7034235 , 21102705
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21102704
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21102705 can be divided by 24 positive divisors.
The sum of these divisors (counting 21102705) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000100000000001110001
3
Ternary
1110201010110200
4
Quaternary
1100200001301
5
Quinary
20400241310
6
Senary
2032145413
8
Octal
120400161
10
Decimal
21102705
12
Duodecimal
7098269
16
Hexadecimal
1420071
20
Vigesimal
6bhgf5
36
Base36
ckay9
md5
777deaa1aa685a65e08d85980044373e
sha1
943bec3b243ea7fde9e406221128af1807b8ff09
sha256
38bd4b720f0c3690d0073600ed8a1ee926bc58c2e9f933b6ada49540f9e58c49
sha512
d8dfdf5633dd466658ed4627d784ce8550aa727d5150d96a4fe5770dad7273b389726eb22e9b666615e38dfa6c5cc853f81c8cdb24bb845ff4292e6ff4e085c7
ripemd-160
4d3f6f57a8153157d707c9582b57fff97f2a49cd
Diameter
42205410
Circumference
132592205.99775
Area
1.3990271042348E+15
Volume
3.9364341690229E+22
Surface area
5.5961084169393E+15
Circumference
132592205.99775
Perimeter
84410820
Area
445324158317025
Diagonal
29843731.613759
Surface area
2671944949902150
Volume
9.3975443423375E+21
Space diagonal
36550957.237138
Perimeter
63308115
Area
1.9283101701073E+14
Altitude
18275478.618569
Surface area
1.9283101701073E+14
Volume
1.107511221828E+21
Height
9947910.5379195