20161831 is an odd 8-digits composite number following 20161830
and preceding 20161832 . In scientific notation, it is written as 2.0161831 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 19100664 positive integers (up to 20161831) that are relatively prime to 20161831.
20161831 has 4 divisors, whose sum is 21223000
The reverse of 20161831 is 13816102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred sixty-one thousand eight hundred thirty-one
Scientific notation
2.0161831 × 10^7
Engineering notation
2.0161831 × 10^6
Prime Factorization
19 × 1061149
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20161831
Product of the distinct prime numbers
The prime factorization of 20161831 is 19 × 1061149.
Since it has a total of 2 prime factors.
10 , 4 , 20 , 9 , 872 , 152 , 6681 , 3033 , 45919 , 98917 , 839151 , 170772 , 563436 , 8541539 , 56885960 , 11302083 , 857350734 , 570314839 , 1039400462 , 1692402624
n×2
40323662
n×3
60485493
n×4
80647324
n×5
100809155
n÷2
10080915.5
n÷3
6720610.3333333
n÷3
5040457.75
n÷5
4032366.2
n2
406499429272561
n3
8.1957727945898E+21
n4
1.6524178599892E+29
n5
3.3315769634483E+36
2 √n
4490.1927575551
3 √n
272.17192400025
4 √n
67.008900584587
5 √n
28.900542428404
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
-20161830
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 20161831 can be divided by 4 positive divisors.
The sum of these divisors (counting 20161831) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111010010100100111
3
Ternary
1101221022211111
4
Quaternary
1030322110213
5
Quinary
20130134311
6
Senary
2000045451
8
Octal
114722447
10
Decimal
20161831
12
Duodecimal
6903887
16
Hexadecimal
133a527
20
Vigesimal
6604bb
36
Base36
c04yv
md5
e1d6da2f97ecfe7214d8c990a80a9c29
sha1
3475e056b04499da9dcbaaa700ac1f272a75680d
sha256
a4c189dd0c8d364f16c2575e38f979e7d0297ab127d30f48f380a542f3ab0f09
sha512
d49ef4bd37e557f55574e6d9ce46dec4dc01a59b12218e39ad6dd7edec2d7c553ac12be236afac5670db4d3fdf02c2b1c985b9d5615d352e2886f86d6944b0b6
ripemd-160
b2d823d648cfc75210fcca23e5acf73cd01513cc
Diameter
40323662
Circumference
126680520.30504
Area
1.2770556206911E+15
Volume
3.4330372802633E+22
Surface area
5.1082224827645E+15
Circumference
126680520.30504
Perimeter
80647324
Area
406499429272561
Diagonal
28513134.842474
Surface area
2438996575635366
Volume
8.1957727945898E+21
Space diagonal
34921315.665617
Perimeter
60485493
Area
1.7601941618696E+14
Altitude
17460657.832809
Surface area
1.7601941618696E+14
Volume
9.6588108668645E+20
Height
9504378.2808248