20161931 is an odd 8-digits composite number following 20161930
and preceding 20161932 . In scientific notation, it is written as 2.0161931 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19466664 positive integers (up to 20161931) that are relatively prime to 20161931.
20161931 has 4 divisors, whose sum is 20857200
The reverse of 20161931 is 13916102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred sixty-one thousand nine hundred thirty-one
Scientific notation
2.0161931 × 10^7
Engineering notation
2.0161931 × 10^6
Prime Factorization
29 × 695239
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20161931
Product of the distinct prime numbers
The prime factorization of 20161931 is 29 × 695239.
Since it has a total of 2 prime factors.
4 , 3 , 80 , 29 , 217 , 879 , 4553 , 779 , 81604 , 39887 , 378116 , 432567 , 5177891 , 8722474 , 17850759 , 2485926 , 427128344 , 451182756 , 2777250155 , 790907552
n×2
40323862
n×3
60485793
n×4
80647724
n×5
100809655
n÷2
10080965.5
n÷3
6720643.6666667
n÷3
5040482.75
n÷5
4032386.2
n2
406503461648761
n3
8.1958947450235E+21
n4
1.6524506433243E+29
n5
3.3316595851609E+36
2 √n
4490.2038929207
3 √n
272.17237397835
4 √n
67.008983673241
5 √n
28.900571096917
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
-20161930
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 20161931 can be divided by 4 positive divisors.
The sum of these divisors (counting 20161931) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111010010110001011
3
Ternary
1101221022222012
4
Quaternary
1030322112023
5
Quinary
20130140211
6
Senary
2000050135
8
Octal
114722613
10
Decimal
20161931
12
Duodecimal
690394b
16
Hexadecimal
133a58b
20
Vigesimal
6604gb
36
Base36
c051n
md5
ac6fd92abe5c9174a357c2ea28709a6d
sha1
2c47ad03caf57ee65949b0238ccd7d7848fbba2a
sha256
cb875c41f05933e9a762951e0fe9eeafe5b6bf294b6abe60d1fed3413e4e7ba5
sha512
4adde93d1636e49c2ee220fe6a97c1f52c6a6ecc83b72c329ffa4dc5718a1d991c4050944cec2e04393b5b637b2fd4d4d8969fb27fa63e414a98b48f090f2dcf
ripemd-160
5b2c9a2ab5c9f0aaf68d81320704a287ced833fe
Diameter
40323862
Circumference
126681148.62357
Area
1.2770682887746E+15
Volume
3.4330883627415E+22
Surface area
5.1082731550983E+15
Circumference
126681148.62357
Perimeter
80647724
Area
406503461648761
Diagonal
28513276.263831
Surface area
2439020769892566
Volume
8.1958947450235E+21
Space diagonal
34921488.870698
Perimeter
60485793
Area
1.7602116225707E+14
Altitude
17460744.435349
Surface area
1.7602116225707E+14
Volume
9.6589545868288E+20
Height
9504425.4212768