20177991 is an odd 8-digits composite number following 20177990
and preceding 20177992 . In scientific notation, it is written as 2.0177991 × 10^7.
The sum of its digits is 36. It has a total of 7 prime factors and 28 positive divisors.
There are 13258080 positive integers (up to 20177991) that are relatively prime to 20177991.
20177991 has 28 divisors, whose sum is 30691440
The reverse of 20177991 is 19977102
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred seventy-seven thousand nine hundred ninety-one
Scientific notation
2.0177991 × 10^7
Engineering notation
2.0177991 × 10^6
Prime Factorization
3 × 3 × 3 × 3 × 9 × 89 × 311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
747333
Product of the distinct prime numbers
The prime factorization of 20177991 is 3 × 3 × 3 × 3 × 9 × 89 × 311.
Since it has a total of 7 prime factors.
1 , 3 , 33 , 57 , 137 , 883 , 8166 , 9330 , 64524 , 75575 , 120535 , 78838 , 7527681 , 6475601 , 52749049 , 915095 , 209220936 , 250408724 , 3482863654 , 6837569046
n×2
40355982
n×3
60533973
n×4
80711964
n×5
100889955
n÷2
10088995.5
n÷3
6725997
n÷3
5044497.75
n÷5
4035598.2
n2
407151320796081
n3
8.2154956866614E+21
n4
1.6577219802599E+29
n5
3.3449499198187E+36
2 √n
4491.9918744361
3 √n
272.24462116277
4 √n
67.022323702152
5 √n
28.905173784596
1 , 3 , 9 , 27 , 81 , 89 , 243 , 267 , 311 , 729 , 801 , 933 , 2403 , 2799 , 7209 , 8397 , 21627 , 25191 , 27679 , 64881 , 75573 , 83037 , 226719 , 249111 , 747333 , 2241999 , 6725997 , 20177991
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20177990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20177991 can be divided by 28 positive divisors.
The sum of these divisors (counting 20177991) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1001100111110010001000111
3
Ternary
1101222011000000
4
Quaternary
1030332101013
5
Quinary
20131143431
6
Senary
2000252343
8
Octal
114762107
10
Decimal
20177991
12
Duodecimal
69110b3
16
Hexadecimal
133e447
20
Vigesimal
6624jb
36
Base36
c0hfr
md5
50db20a972f52c24a925b892e2a4906b
sha1
32412f0c468ce646d92a4af78ee615c212a9e1c9
sha256
8644404ecb2f4d99933e5dc9488e088e3cfe5cd44a243b2d410f7b962add8d0a
sha512
87296929fe1c7e033d967018aff5bdf9ef7eccc515042f0ef3a2c6d79147adfbe95f71cde9ad76df7934d4b0a617dcaedf7b64385f6d774108318c80a380f8fa
ripemd-160
0abe159294f69977afefb2305b7da57f43fb9fd5
Diameter
40355982
Circumference
126782056.5796
Area
1.2791035983123E+15
Volume
3.4412987859752E+22
Surface area
5.1164143932494E+15
Circumference
126782056.5796
Perimeter
80711964
Area
407151320796081
Diagonal
28535988.533642
Surface area
2442907924776486
Volume
8.2154956866614E+21
Space diagonal
34949305.606668
Perimeter
60533973
Area
1.763016934969E+14
Altitude
17474652.803334
Surface area
1.763016934969E+14
Volume
9.6820545180786E+20
Height
9511996.1778808