20138605 is an odd 8-digits composite number following 20138604
and preceding 20138606 . In scientific notation, it is written as 2.0138605 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16093776 positive integers (up to 20138605) that are relatively prime to 20138605.
20138605 has 8 divisors, whose sum is 24192000
The reverse of 20138605 is 50683102
Previous prime number is 1399
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-eight thousand six hundred five
Scientific notation
2.0138605 × 10^7
Engineering notation
2.0138605 × 10^6
Prime Factorization
5 × 1399 × 2879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138605
Product of the distinct prime numbers
The prime factorization of 20138605 is 5 × 1399 × 2879.
Since it has a total of 3 prime factors.
5 , 10 , 9 , 33 , 689 , 399 , 7258 , 1455 , 14349 , 9844 , 109996 , 469381 , 5168468 , 7101006 , 44115630 , 54068862 , 712219833 , 257841542 , 9377774587 , 5893708253
n×2
40277210
n×3
60415815
n×4
80554420
n×5
100693025
n÷2
10069302.5
n÷3
6712868.3333333
n÷3
5034651.25
n÷5
4027721
n2
405563411346025
n3
8.1674813435501E+21
n4
1.6448168062263E+29
n5
3.3124315957952E+36
2 √n
4487.6057090613
3 √n
272.06737175564
4 √n
66.989594035651
5 √n
28.893880796175
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
-20138604
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 20138605 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138605) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101001101101
3
Ternary
1101220010222021
4
Quaternary
1030310221231
5
Quinary
20123413410
6
Senary
1555350141
8
Octal
114645155
10
Decimal
20138605
12
Duodecimal
68b2351
16
Hexadecimal
1334a6d
20
Vigesimal
65h6a5
36
Base36
bzn1p
md5
f99d9a00a3a9cc77820fc6b71e3283b4
sha1
f828fb81de02fae4bc3d798547ff0288a5f9e6f4
sha256
7c24ce17fadc0d2a796d23c2ac7e8a69a78bb28194b5e84740757130b7ed1092
sha512
7841971229fe3c793dba9d664c9f039d6c4cd0ab5fd01e4e1c4c734b29e0b095adb114e9d6148a74fb0783c872b0da794ce3e8d525d46524b2f3dbb85315916a
ripemd-160
d29aa66c97d0a71de1e04ebecc9ccbed5ce2ecab
Diameter
40277210
Circumference
126534587.04309
Area
1.2741150336495E+15
Volume
3.4211865849638E+22
Surface area
5.096460134598E+15
Circumference
126534587.04309
Perimeter
80554420
Area
405563411346025
Diagonal
28480288.318275
Surface area
2433380468076150
Volume
8.1674813435501E+21
Space diagonal
34881087.053561
Perimeter
60415815
Area
1.7561410853557E+14
Altitude
17440543.52678
Surface area
1.7561410853557E+14
Volume
9.6254690720648E+20
Height
9493429.4394249