20180638 is an even 8-digits composite number following 20180637
and preceding 20180639 . In scientific notation, it is written as 2.0180638 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10073400 positive integers (up to 20180638) that are relatively prime to 20180638.
20180638 has 8 divisors, whose sum is 30321720
The reverse of 20180638 is 83608102
Previous prime number is 619
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eighty thousand six hundred thirty-eight
Scientific notation
2.0180638 × 10^7
Engineering notation
2.0180638 × 10^6
Prime Factorization
2 × 619 × 16301
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20180638
Product of the distinct prime numbers
The prime factorization of 20180638 is 2 × 619 × 16301.
Since it has a total of 3 prime factors.
3 , 2 , 88 , 83 , 253 , 853 , 8193 , 6754 , 38915 , 58448 , 66441 , 729603 , 8891833 , 2173199 , 47724248 , 94130134 , 190412642 , 619359695 , 2807030273 , 9222453986
n×2
40361276
n×3
60541914
n×4
80722552
n×5
100903190
n÷2
10090319
n÷3
6726879.3333333
n÷3
5045159.5
n÷5
4036127.6
n2
407258150087044
n3
8.2187292994563E+21
n4
1.6585920081232E+29
n5
3.3471444905628E+36
2 √n
4492.2865002134
3 √n
272.25652522205
4 √n
67.024521633604
5 √n
28.905932115597
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
-20180637
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 20180638 can be divided by 8 positive divisors.
The sum of these divisors (counting 20180638) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111110111010011110
3
Ternary
1101222021122001
4
Quaternary
1030332322132
5
Quinary
20131240023
6
Senary
2000312514
8
Octal
114767236
10
Decimal
20180638
12
Duodecimal
691273a
16
Hexadecimal
133ee9e
20
Vigesimal
662bbi
36
Base36
c0jha
md5
0972c1b30a257a997770afa01aba4793
sha1
d4b47930420920519b3e03757ec5825983e9fb4a
sha256
7ccca2ed167d494efcfe9014ad69ee22f286e73b3499b2d86f2d14c0b37fc999
sha512
555102579788c35849b66243bf52bf3e3c73cb7ed57913f916d627a66a02378353ff99e47efdb303f46c138ec7f7b3ce2b5dd1153ed1a24964a89605a65ad505
ripemd-160
9f47353879621134987c16a73083e6184b355337
Diameter
40361276
Circumference
126798688.17111
Area
1.279439212428E+15
Volume
3.4426532785353E+22
Surface area
5.1177568497121E+15
Circumference
126798688.17111
Perimeter
80722552
Area
407258150087044
Diagonal
28539731.956942
Surface area
2443548900522264
Volume
8.2187292994563E+21
Space diagonal
34953890.345155
Perimeter
60541914
Area
1.7634795193682E+14
Altitude
17476945.172578
Surface area
1.7634795193682E+14
Volume
9.6858653673035E+20
Height
9513243.9856473