20155817 is an odd 8-digits composite number following 20155816
and preceding 20155818 . In scientific notation, it is written as 2.0155817 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 18189600 positive integers (up to 20155817) that are relatively prime to 20155817.
20155817 has 12 divisors, whose sum is 22316868
The reverse of 20155817 is 71855102
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-five thousand eight hundred seventeen
Scientific notation
2.0155817 × 10^7
Engineering notation
2.0155817 × 10^6
Prime Factorization
11 × 11 × 157 × 1061
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1832347
Product of the distinct prime numbers
The prime factorization of 20155817 is 11 × 11 × 157 × 1061.
Since it has a total of 4 prime factors.
2 , 2 , 99 , 44 , 70 , 162 , 3743 , 6063 , 84471 , 50448 , 908634 , 198661 , 8580062 , 3554966 , 43859981 , 71954489 , 193640731 , 238834897 , 3007791971 , 6060439625
n×2
40311634
n×3
60467451
n×4
80623268
n×5
100779085
n÷2
10077908.5
n÷3
6718605.6666667
n÷3
5038954.25
n÷5
4031163.4
n2
406256958937489
n3
8.1884409193205E+21
n4
1.6504471668514E+29
n5
3.3266111063225E+36
2 √n
4489.5230258904
3 √n
272.14485958123
4 √n
67.003903064601
5 √n
28.898818094898
1 , 11 , 121 , 157 , 1061 , 1727 , 11671 , 18997 , 128381 , 166577 , 1832347 , 20155817
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20155816
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20155817 can be divided by 12 positive divisors.
The sum of these divisors (counting 20155817) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111000110110101001
3
Ternary
1101221000120202
4
Quaternary
1030320312221
5
Quinary
20124441232
6
Senary
2000001545
8
Octal
114706651
10
Decimal
20155817
12
Duodecimal
69002b5
16
Hexadecimal
1338da9
20
Vigesimal
65j9ah
36
Base36
c00bt
md5
7117e4a367bc1a3cbf6af82ac7333173
sha1
ce4b0900b6b28bf49a7ea1b3c5e00b2b27dfa295
sha256
2d8f6b55347d400614cb69ba9801ed598968cec6eb5329fa3a214cdb6c8acbd8
sha512
9155f189ac70b760d2b87a3cd505b991a85f92504d4e0a0be16d4706b27a759201b89f3dfa57c1b7939d99f6767398770140ca0326d53a3819eeb558e600ea30
ripemd-160
a38c990331c4c55eaaa8ddee5bc3611d08f5f9cf
Diameter
40311634
Circumference
126642733.2286
Area
1.2762938776677E+15
Volume
3.4299661115322E+22
Surface area
5.105175510671E+15
Circumference
126642733.2286
Perimeter
80623268
Area
406256958937489
Diagonal
28504629.76211
Surface area
2437541753624934
Volume
8.1884409193205E+21
Space diagonal
34910899.112061
Perimeter
60467451
Area
1.7591442345204E+14
Altitude
17455449.55603
Surface area
1.7591442345204E+14
Volume
9.6501701689949E+20
Height
9501543.2540367