20158731 is an odd 8-digits composite number following 20158730
and preceding 20158732 . In scientific notation, it is written as 2.0158731 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13011840 positive integers (up to 20158731) that are relatively prime to 20158731.
20158731 has 8 divisors, whose sum is 20512800
The reverse of 20158731 is 13785102
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred fifty-eight thousand seven hundred thirty-one
Scientific notation
2.0158731 × 10^7
Engineering notation
2.0158731 × 10^6
Prime Factorization
549 × 73 × 503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20158731
Product of the distinct prime numbers
The prime factorization of 20158731 is 549 × 73 × 503.
Since it has a total of 3 prime factors.
3 , 9 , 82 , 51 , 676 , 118 , 1788 , 7515 , 65401 , 24974 , 562947 , 198931 , 4039572 , 7648804 , 45152001 , 11962997 , 187567769 , 980878225 , 2195827441 , 5839606746
n×2
40317462
n×3
60476193
n×4
80634924
n×5
100793655
n÷2
10079365.5
n÷3
6719577
n÷3
5039682.75
n÷5
4031746.2
n2
406374435530361
n3
8.1919929311334E+21
n4
1.6514018185262E+29
n5
3.329016503258E+36
2 √n
4489.8475475232
3 √n
272.157973941
4 √n
67.006324682997
5 √n
28.899653648093
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
-20158730
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 20158731 can be divided by 8 positive divisors.
The sum of these divisors (counting 20158731) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001100100001011
3
Ternary
1101221011120200
4
Quaternary
1030321210023
5
Quinary
20130034411
6
Senary
2000023243
8
Octal
114714413
10
Decimal
20158731
12
Duodecimal
6901b23
16
Hexadecimal
133990b
20
Vigesimal
65jggb
36
Base36
c02kr
md5
6bfae975397061dd8260ad0ed5057086
sha1
a39a3c0a1558fb5d8912ea2a6b49fcd4e6f92352
sha256
38c6e1ccbff54fcc3ff78200b1c3a78f8f11c7cf1d5a48d22d2ecc2a2631c08b
sha512
315ab45d30f30868e9941446c43580462c0301c7deb8bcf0c86fd742d50aef9c3385046cf1e7816573498770006e4967c4296f6df4db587077fe1d43ba98d0f3
ripemd-160
2dd61e098000c55ca0ea3e99c34e70f63eeb8ecc
Diameter
40317462
Circumference
126661042.43059
Area
1.2766629412689E+15
Volume
3.4314539747611E+22
Surface area
5.1066517650755E+15
Circumference
126661042.43059
Perimeter
80634924
Area
406374435530361
Diagonal
28508750.780431
Surface area
2438246613182166
Volume
8.1919929311334E+21
Space diagonal
34915946.308114
Perimeter
60476193
Area
1.7596529230893E+14
Altitude
17457973.154057
Surface area
1.7596529230893E+14
Volume
9.6543562550611E+20
Height
9502916.9268103