20180131 is an odd 8-digits composite number following 20180130
and preceding 20180132 . In scientific notation, it is written as 2.0180131 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 19302712 positive integers (up to 20180131) that are relatively prime to 20180131.
20180131 has 4 divisors, whose sum is 21057552
The reverse of 20180131 is 13108102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred eighty thousand one hundred thirty-one
Scientific notation
2.0180131 × 10^7
Engineering notation
2.0180131 × 10^6
Prime Factorization
23 × 877397
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180131
Product of the distinct prime numbers
The prime factorization of 20180131 is 23 × 877397.
Since it has a total of 2 prime factors.
9 , 8 , 78 , 54 , 897 , 1000 , 1839 , 8872 , 8666 , 93388 , 702071 , 178672 , 7367299 , 9588527 , 1744926 , 3488577 , 94707121 , 385628911 , 387429283 , 1188131040
n×2
40360262
n×3
60540393
n×4
80720524
n×5
100900655
n÷2
10090065.5
n÷3
6726710.3333333
n÷3
5045032.75
n÷5
4036026.2
n2
407237687177161
n3
8.2181098753721E+21
n4
1.658425338574E+29
n5
3.3467240586143E+36
2 √n
4492.2300697983
3 √n
272.25424522783
4 √n
67.024100663853
5 √n
28.905786872866
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
-20180130
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 20180131 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110110010100011
3
Ternary
1101222020221021
4
Quaternary
1030332302203
5
Quinary
20131231011
6
Senary
2000310311
8
Octal
114766243
10
Decimal
20180131
12
Duodecimal
6912397
16
Hexadecimal
133eca3
20
Vigesimal
662a6b
36
Base36
c0j37
md5
27cf9b9af0f70922d4875dd55b58aa80
sha1
9cab730224e7690b8562fcc8829ad32d39482328
sha256
b34b6895fa6544cb0ddca2a13fde49e3bbb5da94a1061802f20c9f66045846bb
sha512
179d4618419e3cca695b40fda476bf12999ce9294fdd06712977c642d06184caa6bf9c64bdf856710749af1504552e2c1f708bfe9221f7ef75db13fe4890079a
ripemd-160
c81d504b21bd920fe094ae39e308ae987ba2dce4
Diameter
40360262
Circumference
126795502.59616
Area
1.2793749263007E+15
Volume
3.4423938147817E+22
Surface area
5.1174997052027E+15
Circumference
126795502.59616
Perimeter
80720524
Area
407237687177161
Diagonal
28539014.950666
Surface area
2443426123062966
Volume
8.2181098753721E+21
Space diagonal
34953012.195396
Perimeter
60540393
Area
1.7633909123692E+14
Altitude
17476506.097698
Surface area
1.7633909123692E+14
Volume
9.6851353690196E+20
Height
9513004.9835552