20138539 is an odd 8-digits composite number following 20138538
and preceding 20138540 . In scientific notation, it is written as 2.0138539 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19895824 positive integers (up to 20138539) that are relatively prime to 20138539.
20138539 has 4 divisors, whose sum is 20381256
The reverse of 20138539 is 93583102
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred thirty-eight thousand five hundred thirty-nine
Scientific notation
2.0138539 × 10^7
Engineering notation
2.0138539 × 10^6
Prime Factorization
83 × 242633
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138539
Product of the distinct prime numbers
The prime factorization of 20138539 is 83 × 242633.
Since it has a total of 2 prime factors.
8 , 3 , 79 , 10 , 795 , 107 , 9714 , 4388 , 70034 , 19901 , 390882 , 812450 , 3323320 , 4379004 , 98176546 , 9737725 , 304684562 , 815845417 , 2365118613 , 6559348171
n×2
40277078
n×3
60415617
n×4
80554156
n×5
100692695
n÷2
10069269.5
n÷3
6712846.3333333
n÷3
5034634.75
n÷5
4027707.8
n2
405560753054521
n3
8.1674010422578E+21
n4
1.6447952441815E+29
n5
3.3123773171964E+36
2 √n
4487.5983554681
3 √n
272.06707454098
4 √n
66.989539149543
5 √n
28.893861857439
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138538
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138539 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138539) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101000101011
3
Ternary
1101220010212211
4
Quaternary
1030310220223
5
Quinary
20123413124
6
Senary
1555345551
8
Octal
114645053
10
Decimal
20138539
12
Duodecimal
68b22b7
16
Hexadecimal
1334a2b
20
Vigesimal
65h66j
36
Base36
bzmzv
md5
caa1edcf63785293f633fb390e4c67cd
sha1
c9add768f97d35ef02d6b3b7acccdfdc24667624
sha256
eb7f30ad3b0a0f3e6a4a854edf602838352d6a66eb014b4f71ac15bc4e3096b5
sha512
2fb4b65538c32aa8a7614822a23920a33015665e4f88415089ec2f137bcafb17625f525296b274f5e01477216bcade2e3c6dccb1d2e0edae8751455d353113a9
ripemd-160
343eefe51c8ce626ff3dbae12e0c91c109e6a862
Diameter
40277078
Circumference
126534172.35286
Area
1.2741066823804E+15
Volume
3.4211529484372E+22
Surface area
5.0964267295217E+15
Circumference
126534172.35286
Perimeter
80554156
Area
405560753054521
Diagonal
28480194.98018
Surface area
2433364518327126
Volume
8.1674010422578E+21
Space diagonal
34880972.738207
Perimeter
60415617
Area
1.7561295746158E+14
Altitude
17440486.369104
Surface area
1.7561295746158E+14
Volume
9.6253744360843E+20
Height
9493398.3267265