20179991 is an odd 8-digits composite number following 20179990
and preceding 20179992 . In scientific notation, it is written as 2.0179991 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 18627672 positive integers (up to 20179991) that are relatively prime to 20179991.
20179991 has 4 divisors, whose sum is 21732312
The reverse of 20179991 is 19997102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred seventy-nine thousand nine hundred ninety-one
Scientific notation
2.0179991 × 10^7
Engineering notation
2.0179991 × 10^6
Prime Factorization
13 × 1552307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20179991
Product of the distinct prime numbers
The prime factorization of 20179991 is 13 × 1552307.
Since it has a total of 2 prime factors.
5 , 9 , 26 , 18 , 930 , 409 , 1219 , 4918 , 53801 , 35978 , 631408 , 973505 , 6549933 , 916929 , 89237171 , 25988434 , 657299558 , 752272628 , 98809428 , 7441310097
n×2
40359982
n×3
60539973
n×4
80719964
n×5
100899955
n÷2
10089995.5
n÷3
6726663.6666667
n÷3
5044997.75
n÷5
4035998.2
n2
407232036760081
n3
8.2179388367301E+21
n4
1.6583793176376E+29
n5
3.3466079704514E+36
2 √n
4492.2144873102
3 √n
272.25361563689
4 √n
67.023984418343
5 √n
28.905746765877
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
-20179990
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 20179991 can be divided by 4 positive divisors.
The sum of these divisors (counting 20179991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110110000010111
3
Ternary
1101222020202002
4
Quaternary
1030332300113
5
Quinary
20131224431
6
Senary
2000305515
8
Octal
114766027
10
Decimal
20179991
12
Duodecimal
691229b
16
Hexadecimal
133ec17
20
Vigesimal
6629jb
36
Base36
c0izb
md5
21d3161546d0cfb90e45e366ad481a96
sha1
cfa795433e04569bf6d90ac1a2971936da9bdb68
sha256
04cc82d72e422bd4abaec4d3ef821b0a80c588d7776287eb7827b90a22467559
sha512
bb799b95792dc011b638797234aa65d9d92bfa49b226b95498343c55470d5f4313dda6f9d4a27a529ef8c1550e73c894dc2f67687a097ee0e1af6786285ae6d0
ripemd-160
16dbfb8f0a0fa66cedd2adb97d0d8a06a3638433
Diameter
40359982
Circumference
126794622.95022
Area
1.2793571749919E+15
Volume
3.4423221702829E+22
Surface area
5.1174286999675E+15
Circumference
126794622.95022
Perimeter
80719964
Area
407232036760081
Diagonal
28538816.960767
Surface area
2443392220560486
Volume
8.2179388367301E+21
Space diagonal
34952769.708283
Perimeter
60539973
Area
1.7633664453455E+14
Altitude
17476384.854141
Surface area
1.7633664453455E+14
Volume
9.6849337980469E+20
Height
9512938.9869223