20787091 is an odd 8-digits composite number following 20787090
and preceding 20787092 . In scientific notation, it is written as 2.0787091 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 19078752 positive integers (up to 20787091) that are relatively prime to 20787091.
20787091 has 8 divisors, whose sum is 22513680
The reverse of 20787091 is 19078702
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seven hundred eighty-seven thousand ninety-one
Scientific notation
2.0787091 × 10^7
Engineering notation
2.0787091 × 10^6
Prime Factorization
13 × 179 × 8933
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20787091
Product of the distinct prime numbers
The prime factorization of 20787091 is 13 × 179 × 8933.
Since it has a total of 3 prime factors.
3 , 3 , 29 , 59 , 310 , 4 , 2773 , 2488 , 42098 , 57941 , 72933 , 530613 , 4664093 , 9775089 , 12547218 , 63003026 , 865272072 , 162325998 , 4923063833 , 7822168418
n×2
41574182
n×3
62361273
n×4
83148364
n×5
103935455
n÷2
10393545.5
n÷3
6929030.3333333
n÷3
5196772.75
n÷5
4157418.2
n2
432103152242281
n3
8.9821675470471E+21
n4
1.8671313417772E+29
n5
3.8812229110474E+36
2 √n
4559.2862379982
3 √n
274.95686816656
4 √n
67.522486906202
5 √n
29.077612418769
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
-20787090
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 20787091 can be divided by 8 positive divisors.
The sum of these divisors (counting 20787091) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010010111110010011
3
Ternary
1110010002112021
4
Quaternary
1033102332103
5
Quinary
20310141331
6
Senary
2021312311
8
Octal
117227623
10
Decimal
20787091
12
Duodecimal
6b65697
16
Hexadecimal
13d2f93
20
Vigesimal
69i7eb
36
Base36
cdjf7
md5
2a60ca34814e7268cca70cc116264546
sha1
1ae685dbf09df6dbe814cb324b299b39e9f7d31d
sha256
1a4b2bfc0b685750263fb89f7bcb279b9d89512344aaba23aff7b9aa476d96b0
sha512
87034d647b0ca04d5a2ccedf4934aa57eeed509d067a30ef1a518295ffee23eae195c7f5686c22e2b02c5655bafa8788ba8b66d79b89df7ccc8443649c0083cc
ripemd-160
63a68ef7a167ee29d7aeec2299032965430ae526
Diameter
41574182
Circumference
130609144.75021
Area
1.3574920886773E+15
Volume
3.7624415438821E+22
Surface area
5.4299683547094E+15
Circumference
130609144.75021
Perimeter
83148364
Area
432103152242281
Diagonal
29397386.014484
Surface area
2592618913453686
Volume
8.9821675470471E+21
Space diagonal
36004297.753558
Perimeter
62361273
Area
1.8710615344858E+14
Altitude
18002148.876779
Surface area
1.8710615344858E+14
Volume
1.0585585970451E+21
Height
9799128.6714946