20138555 is an odd 8-digits composite number following 20138554
and preceding 20138556 . In scientific notation, it is written as 2.0138555 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16110840 positive integers (up to 20138555) that are relatively prime to 20138555.
20138555 has 4 divisors, whose sum is 24166272
The reverse of 20138555 is 55583102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand five hundred fifty-five
Scientific notation
2.0138555 × 10^7
Engineering notation
2.0138555 × 10^6
Prime Factorization
5 × 4027711
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20138555
Product of the distinct prime numbers
The prime factorization of 20138555 is 5 × 4027711.
Since it has a total of 2 prime factors.
8 , 9 , 13 , 14 , 673 , 567 , 2026 , 1499 , 94197 , 89207 , 173824 , 847660 , 8429460 , 7333469 , 70873819 , 98291546 , 794588911 , 779281146 , 3906276117 , 58251340
n×2
40277110
n×3
60415665
n×4
80554220
n×5
100692775
n÷2
10069277.5
n÷3
6712851.6666667
n÷3
5034638.75
n÷5
4027711
n2
405561397488025
n3
8.1674205091895E+21
n4
1.6448004713244E+29
n5
3.3123904755792E+36
2 √n
4487.6001381585
3 √n
272.06714659308
4 √n
66.989552455278
5 √n
28.893866448653
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
-20138554
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 20138555 can be divided by 4 positive divisors.
The sum of these divisors (counting 20138555) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100101000111011
3
Ternary
1101220010220102
4
Quaternary
1030310220323
5
Quinary
20123413210
6
Senary
1555350015
8
Octal
114645073
10
Decimal
20138555
12
Duodecimal
68b230b
16
Hexadecimal
1334a3b
20
Vigesimal
65h67f
36
Base36
bzn0b
md5
d42e3e619d11bdf5b1e01df14b0038ec
sha1
c18a6af42b1384df3f2f60c08810b25118ac012b
sha256
21085753ad13246491801b783dc93ff5e3dde9e045a6878eea85e5822c97bdc3
sha512
17cc0ddfbf7e18dfab03e15eb659cdd90a4b77802590c7938dbd90c3d7144cef4896bb0e0f2add7082ef7b991db9dfbcf83c36ecc9c8a7970dfb64b0e6d76a13
ripemd-160
5f27d299beb94842c88d275fbedf6dc6221ffbb8
Diameter
40277110
Circumference
126534272.88383
Area
1.274108706928E+15
Volume
3.4211611027264E+22
Surface area
5.096434827712E+15
Circumference
126534272.88383
Perimeter
80554220
Area
405561397488025
Diagonal
28480217.607597
Surface area
2433368384928150
Volume
8.1674205091895E+21
Space diagonal
34881000.45102
Perimeter
60415665
Area
1.7561323650947E+14
Altitude
17440500.22551
Surface area
1.7561323650947E+14
Volume
9.6253973780832E+20
Height
9493405.8691988