20181161 is an odd 8-digits composite number following 20181160
and preceding 20181162 . In scientific notation, it is written as 2.0181161 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 14515200 positive integers (up to 20181161) that are relatively prime to 20181161.
20181161 has 16 divisors, whose sum is 27097728
The reverse of 20181161 is 16118102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred eighty-one thousand one hundred sixty-one
Scientific notation
2.0181161 × 10^7
Engineering notation
2.0181161 × 10^6
Prime Factorization
13 × 7 × 11 × 20161
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20181161
Product of the distinct prime numbers
The prime factorization of 20181161 is 13 × 7 × 11 × 20161.
Since it has a total of 4 prime factors.
9 , 7 , 54 , 1 , 685 , 207 , 3840 , 4763 , 91566 , 15444 , 93635 , 138787 , 2367098 , 1875281 , 72509534 , 52102798 , 853638375 , 559179936 , 240769792 , 4935595369
n×2
40362322
n×3
60543483
n×4
80724644
n×5
100905805
n÷2
10090580.5
n÷3
6727053.6666667
n÷3
5045290.25
n÷5
4036232.2
n2
407279259307921
n3
8.2193683040539E+21
n4
1.6587639506241E+29
n5
3.3475782348541E+36
2 √n
4492.3447107274
3 √n
272.25887712874
4 √n
67.024955880085
5 √n
28.906081938866
1 , 7 , 11 , 13 , 77 , 91 , 143 , 1001 , 20161 , 141127 , 221771 , 262093 , 1552397 , 1834651 , 2883023 , 20181161
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181160
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181161 can be divided by 16 positive divisors.
The sum of these divisors (counting 20181161) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111000010101001
3
Ternary
1101222022100102
4
Quaternary
1030333002221
5
Quinary
20131244121
6
Senary
2000315145
8
Octal
114770251
10
Decimal
20181161
12
Duodecimal
6912ab5
16
Hexadecimal
133f0a9
20
Vigesimal
662ci1
36
Base36
c0jvt
md5
882890c1a37f3843568a5f7f5adc2f33
sha1
d921d7e8db898438df64ef1ab12a4a67198f2f27
sha256
98f4b1d41759a61e92feb1f8319a1f05f2f8f7695143ffb707431a5ada5cef18
sha512
e0c06b465a60b576b30d3248fd77b29f7736e3f1107304186b832a76789e2cb0df8e73cbf678555f9599130b2fa9ab348c37cbca83c43a973d057831a9d47575
ripemd-160
30c52dca9cf17311eddc30ea29dce509a09d387a
Diameter
40362322
Circumference
126801974.27703
Area
1.2795055290013E+15
Volume
3.4429209441553E+22
Surface area
5.118022116005E+15
Circumference
126801974.27703
Perimeter
80724644
Area
407279259307921
Diagonal
28540471.590635
Surface area
2443675555847526
Volume
8.2193683040539E+21
Space diagonal
34954796.207728
Perimeter
60543483
Area
1.7635709249758E+14
Altitude
17477398.103864
Surface area
1.7635709249758E+14
Volume
9.6866184414438E+20
Height
9513490.5302117