20155931 is an odd 8-digits composite number following 20155930
and preceding 20155932 . In scientific notation, it is written as 2.0155931 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18970272 positive integers (up to 20155931) that are relatively prime to 20155931.
20155931 has 4 divisors, whose sum is 21341592
The reverse of 20155931 is 13955102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred fifty-five thousand nine hundred thirty-one
Scientific notation
2.0155931 × 10^7
Engineering notation
2.0155931 × 10^6
Prime Factorization
17 × 1185643
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155931
Product of the distinct prime numbers
The prime factorization of 20155931 is 17 × 1185643.
Since it has a total of 2 prime factors.
3 , 5 , 97 , 78 , 257 , 116 , 5769 , 6795 , 55928 , 54713 , 321342 , 109778 , 2974001 , 3545917 , 62428069 , 77447372 , 329397054 , 360997729 , 8690860144 , 55591540
n×2
40311862
n×3
60467793
n×4
80623724
n×5
100779655
n÷2
10077965.5
n÷3
6718643.6666667
n÷3
5038982.75
n÷5
4031186.2
n2
406261554476761
n3
8.1885798599863E+21
n4
1.6504845064587E+29
n5
3.3267051828751E+36
2 √n
4489.5357220987
3 √n
272.14537265818
4 √n
67.003997806837
5 √n
28.898850784794
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
-20155930
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 20155931 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155931) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000111000011011
3
Ternary
1101221000201222
4
Quaternary
1030320320123
5
Quinary
20124442211
6
Senary
2000002255
8
Octal
114707033
10
Decimal
20155931
12
Duodecimal
690038b
16
Hexadecimal
1338e1b
20
Vigesimal
65j9gb
36
Base36
c00ez
md5
f6bc55db6a3a3b98cb71207c0bbb5dfa
sha1
09c9cc3cc78fcd26ce37ed855a0f46972f5df398
sha256
3c9313b6ceee6359f1cebabc8896fae1662c17a1fe2761d6c8e17fea2a8acd00
sha512
9bb21a310de80106235d24e977f22d8d6be0cd6654225291ca05dc13864a7c745af7a64e9f372e1ca05787b8b11743d63a5ef0e66af82a3576a3dedf7353bdf1
ripemd-160
158e54dafcc5fb6f60b446fe2c14cb64effae931
Diameter
40311862
Circumference
126643449.51173
Area
1.2763083149802E+15
Volume
3.4300243108622E+22
Surface area
5.1052332599206E+15
Circumference
126643449.51173
Perimeter
80623724
Area
406261554476761
Diagonal
28504790.982456
Surface area
2437569326860566
Volume
8.1885798599863E+21
Space diagonal
34911096.565853
Perimeter
60467793
Area
1.7591641337892E+14
Altitude
17455548.282926
Surface area
1.7591641337892E+14
Volume
9.6503339121399E+20
Height
9501596.9941521