20156731 is an odd 8-digits composite number following 20156730
and preceding 20156732 . In scientific notation, it is written as 2.0156731 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 17277192 positive integers (up to 20156731) that are relatively prime to 20156731.
20156731 has 4 divisors, whose sum is 23036272
The reverse of 20156731 is 13765102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred fifty-six thousand seven hundred thirty-one
Scientific notation
2.0156731 × 10^7
Engineering notation
2.0156731 × 10^6
Prime Factorization
7 × 2879533
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20156731
Product of the distinct prime numbers
The prime factorization of 20156731 is 7 × 2879533.
Since it has a total of 2 prime factors.
10 , 4 , 35 , 13 , 266 , 238 , 3344 , 5009 , 35489 , 67594 , 828445 , 805445 , 5302018 , 5333563 , 88911967 , 4724411 , 129126824 , 594257567 , 3936240679 , 4781439429
n×2
40313462
n×3
60470193
n×4
80626924
n×5
100783655
n÷2
10078365.5
n÷3
6718910.3333333
n÷3
5039182.75
n÷5
4031346.2
n2
406293804606361
n3
8.189554926417E+21
n4
1.6507465566151E+29
n5
3.3273654290867E+36
2 √n
4489.6248172871
3 √n
272.14897314378
4 √n
67.004662653334
5 √n
28.899080183412
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
-20156730
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 20156731 can be divided by 4 positive divisors.
The sum of these divisors (counting 20156731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001000100111011
3
Ternary
1101221001211121
4
Quaternary
1030321010323
5
Quinary
20130003411
6
Senary
2000010111
8
Octal
114710473
10
Decimal
20156731
12
Duodecimal
6900937
16
Hexadecimal
133913b
20
Vigesimal
65jbgb
36
Base36
c0117
md5
097e8fbef3bbca260be4fc72b0732a95
sha1
34b76db176b5abdd62bac94d9c7ebe39cc2ecec5
sha256
0e6ad9e78100602c47d21ceeb49e4b865abf69db77422359d0bf5fd90c7e78e7
sha512
0d355e7d3a299d4cbfd4e95dae25a19670c268b09db927a067cd9b406c50c66f907f84b091dd80adad7c094fdf8322a6ccb14015acb4a024c2712c19b4305d23
ripemd-160
bbb6015ed046a38970520dc3ba4384f3f1cab253
Diameter
40313462
Circumference
126648476.05997
Area
1.2764096317504E+15
Volume
3.4304327457336E+22
Surface area
5.1056385270016E+15
Circumference
126648476.05997
Perimeter
80626924
Area
406293804606361
Diagonal
28505922.353306
Surface area
2437762827638166
Volume
8.189554926417E+21
Space diagonal
34912482.206499
Perimeter
60470193
Area
1.7593037809467E+14
Altitude
17456241.103249
Surface area
1.7593037809467E+14
Volume
9.6514830389486E+20
Height
9501974.1177687