20156909 is an odd 8-digits composite number following 20156908
and preceding 20156910 . In scientific notation, it is written as 2.0156909 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20016216 positive integers (up to 20156909) that are relatively prime to 20156909.
20156909 has 4 divisors, whose sum is 20258400
The reverse of 20156909 is 90965102
Previous prime number is 101291
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred fifty-six thousand nine hundred nine
Scientific notation
2.0156909 × 10^7
Engineering notation
2.0156909 × 10^6
Prime Factorization
101291 × 199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20156909
Product of the distinct prime numbers
The prime factorization of 20156909 is 101291 × 199.
Since it has a total of 2 prime factors.
8 , 5 , 22 , 64 , 926 , 788 , 6189 , 5854 , 28742 , 53928 , 951895 , 468021 , 7665405 , 6346631 , 41448063 , 87342481 , 927279914 , 711799036 , 1818755151 , 7120468874
n×2
40313818
n×3
60470727
n×4
80627636
n×5
100784545
n÷2
10078454.5
n÷3
6718969.6666667
n÷3
5039227.25
n÷5
4031381.8
n2
406300980434281
n3
8.1897718892246E+21
n4
1.6508048670186E+29
n5
3.3275123481251E+36
2 √n
4489.644640726
3 √n
272.14977423887
4 √n
67.004810578988
5 √n
28.899131223614
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
-20156908
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 20156909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20156909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001000111101101
3
Ternary
1101221002002012
4
Quaternary
1030321013231
5
Quinary
20130010114
6
Senary
2000011005
8
Octal
114710755
10
Decimal
20156909
12
Duodecimal
6900a65
16
Hexadecimal
13391ed
20
Vigesimal
65jc59
36
Base36
c0165
md5
339861731e5f4b7cb336bac7bd2a1607
sha1
2b74c74656f13e3399e4a16bcebd7f0ce718e308
sha256
16f247e0d5dcb0bb979d8fc3ab1f5491700228262d90b77cf334422eaa1cd59f
sha512
6eaa62ee3b77249781b86f01c6767c1979dd4d8065db807ec4889dbb531307bafbe703cba5227552734239336b2d05169fa95bc425230ef813dfa4c198508ade
ripemd-160
0fe1d91ba4ba398ba6b3e1fb9b4c1913d8d19fac
Diameter
40313818
Circumference
126649594.46696
Area
1.2764321752787E+15
Volume
3.4305236269019E+22
Surface area
5.1057287011147E+15
Circumference
126649594.46696
Perimeter
80627636
Area
406300980434281
Diagonal
28506174.08332
Surface area
2437805882605686
Volume
8.1897718892246E+21
Space diagonal
34912790.511542
Perimeter
60470727
Area
1.7593348531931E+14
Altitude
17456395.255771
Surface area
1.7593348531931E+14
Volume
9.6517387320694E+20
Height
9502058.0277734