20105638 is an even 8-digits composite number following 20105637
and preceding 20105639 . In scientific notation, it is written as 2.0105638 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 32 positive divisors.
There are 8373120 positive integers (up to 20105638) that are relatively prime to 20105638.
20105638 has 32 divisors, whose sum is 35458560
The reverse of 20105638 is 83650102
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred five thousand six hundred thirty-eight
Scientific notation
2.0105638 × 10^7
Engineering notation
2.0105638 × 10^6
Prime Factorization
2 × 7 × 113 × 179 × 71
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20105638
Product of the distinct prime numbers
The prime factorization of 20105638 is 2 × 7 × 113 × 179 × 71.
Since it has a total of 5 prime factors.
2 , 9 , 89 , 46 , 972 , 949 , 8107 , 4626 , 45851 , 38750 , 827417 , 289129 , 345618 , 1596815 , 77429017 , 10011151 , 879974176 , 771170542 , 2690299219 , 3161384251
n×2
40211276
n×3
60316914
n×4
80422552
n×5
100528190
n÷2
10052819
n÷3
6701879.3333333
n÷3
5026409.5
n÷5
4021127.6
n2
404236679387044
n3
8.127436342078E+21
n4
1.6340729296186E+29
n5
3.2854078788512E+36
2 √n
4483.9310877845
3 √n
271.91883211029
4 √n
66.962161612245
5 √n
28.884414709426
1 , 2 , 7 , 14 , 71 , 113 , 142 , 179 , 226 , 358 , 497 , 791 , 994 , 1253 , 1582 , 2506 , 8023 , 12709 , 16046 , 20227 , 25418 , 40454 , 56161 , 88963 , 112322 , 141589 , 177926 , 283178 , 1436117 , 2872234 , 10052819 , 20105638
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
-20105637
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 20105638 can be divided by 32 positive divisors.
The sum of these divisors (counting 20105638) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101100100110100110
3
Ternary
1101211110202021
4
Quaternary
1030230212212
5
Quinary
20121340023
6
Senary
1554533354
8
Octal
114544646
10
Decimal
20105638
12
Duodecimal
689725a
16
Hexadecimal
132c9a6
20
Vigesimal
65d41i
36
Base36
byxly
md5
a5d04b393d9d18bda5b2922c7538553e
sha1
3686c788b19dcb3410e3033eaa8700903282577a
sha256
c10530d4eceddf32341e4c95bbefe95747714282084b3def0ddce5aed9b47a02
sha512
cacfc86ea812b4a617f76bbbd6006f90c4fac7254579be3778a3905c3ade91bd5b763e80b90cfae15863a14b46676133a554f3021cf47614b857843ee57f3d57
ripemd-160
6bfcd8f2efb79c40c31417c890b733d189ee0391
Diameter
40211276
Circumference
126327449.27307
Area
1.2699469822739E+15
Volume
3.4044125739721E+22
Surface area
5.0797879290955E+15
Circumference
126327449.27307
Perimeter
80422552
Area
404236679387044
Diagonal
28433665.939764
Surface area
2425420076322264
Volume
8.127436342078E+21
Space diagonal
34823986.534588
Perimeter
60316914
Area
1.7503961674532E+14
Altitude
17411993.267294
Surface area
1.7503961674532E+14
Volume
9.5782755852422E+20
Height
9477888.646588