20165391 is an odd 8-digits composite number following 20165390
and preceding 20165392 . In scientific notation, it is written as 2.0165391 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 13368240 positive integers (up to 20165391) that are relatively prime to 20165391.
20165391 has 12 divisors, whose sum is 29291080
The reverse of 20165391 is 19356102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred sixty-five thousand three hundred ninety-one
Scientific notation
2.0165391 × 10^7
Engineering notation
2.0165391 × 10^6
Prime Factorization
3 × 3 × 181 × 12379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6721797
Product of the distinct prime numbers
The prime factorization of 20165391 is 3 × 3 × 181 × 12379.
Since it has a total of 4 prime factors.
4 , 8 , 82 , 78 , 385 , 58 , 657 , 4531 , 94472 , 78647 , 917171 , 805016 , 1993011 , 6875837 , 74775533 , 59689780 , 443892595 , 922943833 , 2940581734 , 4465568101
n×2
40330782
n×3
60496173
n×4
80661564
n×5
100826955
n÷2
10082695.5
n÷3
6721797
n÷3
5041347.75
n÷5
4033078.2
n2
406642994182881
n3
8.2001149751085E+21
n4
1.6535852471802E+29
n5
3.334519306122E+36
2 √n
4490.5891595647
3 √n
272.18794230445
4 √n
67.01185835033
5 √n
28.901562957394
1 , 3 , 9 , 181 , 543 , 1629 , 12379 , 37137 , 111411 , 2240599 , 6721797 , 20165391
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20165390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20165391 can be divided by 12 positive divisors.
The sum of these divisors (counting 20165391) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111011001100001111
3
Ternary
1101221111201100
4
Quaternary
1030323030033
5
Quinary
20130243031
6
Senary
2000114143
8
Octal
114731417
10
Decimal
20165391
12
Duodecimal
6905953
16
Hexadecimal
133b30f
20
Vigesimal
660d9b
36
Base36
c07pr
md5
acd3a505eba75b11828f0c9d22e88417
sha1
a5f7ae32d094736dbf23a95c6ae793a5db4c71f0
sha256
4839fc28f87029d22861e9053ebbc4e688a08d907a06fb4c097fa6dd9bfff681
sha512
5aede997c9629a21996e897c1dbf17d5d89ee7f304c532cd6fd8d52c525548a18a6ed626b4663f9249b5b05c73d10aa82f78731fa46dbfe75add980fda50a96b
ripemd-160
8c7738738ebf6a5f8240f6447b4b9df7612f0de7
Diameter
40330782
Circumference
126702888.44473
Area
1.2775066431587E+15
Volume
3.4348561285857E+22
Surface area
5.1100265726348E+15
Circumference
126702888.44473
Perimeter
80661564
Area
406642994182881
Diagonal
28518169.442756
Surface area
2439857965097286
Volume
8.2001149751085E+21
Space diagonal
34927481.766492
Perimeter
60496173
Area
1.7608158161667E+14
Altitude
17463740.883246
Surface area
1.7608158161667E+14
Volume
9.663928175681E+20
Height
9506056.4809188