20161555 is an odd 8-digits composite number following 20161554
and preceding 20161556 . In scientific notation, it is written as 2.0161555 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16005600 positive integers (up to 20161555) that are relatively prime to 20161555.
20161555 has 8 divisors, whose sum is 24379344
The reverse of 20161555 is 55516102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred sixty-one thousand five hundred fifty-five
Scientific notation
2.0161555 × 10^7
Engineering notation
2.0161555 × 10^6
Prime Factorization
5 × 131 × 30781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20161555
Product of the distinct prime numbers
The prime factorization of 20161555 is 5 × 131 × 30781.
Since it has a total of 3 prime factors.
3 , 8 , 87 , 2 , 785 , 774 , 1967 , 3191 , 25086 , 20699 , 926876 , 385923 , 6524054 , 7170824 , 6810909 , 44169885 , 349192582 , 671399066 , 1756230053 , 8577257003
n×2
40323110
n×3
60484665
n×4
80646220
n×5
100807775
n÷2
10080777.5
n÷3
6720518.3333333
n÷3
5040388.75
n÷5
4032311
n2
406488300018025
n3
8.1954362176699E+21
n4
1.6523273805154E+29
n5
3.3313489360268E+36
2 √n
4490.1620238027
3 √n
272.17068205296
4 √n
67.008671258298
5 √n
28.90046330272
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20161554
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20161555 can be divided by 8 positive divisors.
The sum of these divisors (counting 20161555) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111010010000010011
3
Ternary
1101221022110021
4
Quaternary
1030322100103
5
Quinary
20130132210
6
Senary
2000044311
8
Octal
114722023
10
Decimal
20161555
12
Duodecimal
6903697
16
Hexadecimal
133a413
20
Vigesimal
6603hf
36
Base36
c04r7
md5
a09ebbc6364c322a5e570f0a5dd8ae09
sha1
d2e84ee99a424da473c3d5d13b3639d0b22615d2
sha256
a03540f21344e1dbc42354427e7984666cee560960cbfcffdebeb468b2a09d95
sha512
946a82a514fdab18d2de0570b97f6fff9525d6a1eecd6662a83ac8dcf875950c896b17bf006aaa7d9582e0fc71c3dc2c9aef67e5c05da1bf1268a5fbf870f0ac
ripemd-160
0bfd5551017521fe9e713b13a7b78d3a278a8e55
Diameter
40323110
Circumference
126678786.14589
Area
1.2770206571068E+15
Volume
3.4328962952527E+22
Surface area
5.1080826284273E+15
Circumference
126678786.14589
Perimeter
80646220
Area
406488300018025
Diagonal
28512744.519531
Surface area
2438929800108150
Volume
8.1954362176699E+21
Space diagonal
34920837.619594
Perimeter
60484665
Area
1.7601459707838E+14
Altitude
17460418.809797
Surface area
1.7601459707838E+14
Volume
9.6584142071604E+20
Height
9504248.173177