20155561 is an odd 8-digits composite number following 20155560
and preceding 20155562 . In scientific notation, it is written as 2.0155561 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 19057680 positive integers (up to 20155561) that are relatively prime to 20155561.
20155561 has 8 divisors, whose sum is 21257600
The reverse of 20155561 is 16555102
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred fifty-five thousand five hundred sixty-one
Scientific notation
2.0155561 × 10^7
Engineering notation
2.0155561 × 10^6
Prime Factorization
19 × 1021 × 1039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20155561
Product of the distinct prime numbers
The prime factorization of 20155561 is 19 × 1021 × 1039.
Since it has a total of 3 prime factors.
7 , 9 , 83 , 4 , 180 , 973 , 482 , 1008 , 53969 , 30320 , 866607 , 955836 , 2115113 , 3782638 , 57617556 , 44802741 , 183291000 , 449310652 , 1886421964 , 7186280099
n×2
40311122
n×3
60466683
n×4
80622244
n×5
100777805
n÷2
10077780.5
n÷3
6718520.3333333
n÷3
5038890.25
n÷5
4031112.2
n2
406246639224721
n3
8.1881289179389E+21
n4
1.6503633188138E+29
n5
3.3263998544514E+36
2 √n
4489.494514976
3 √n
272.14370740137
4 √n
67.003690308639
5 √n
28.89874468547
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
-20155560
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 20155561 can be divided by 8 positive divisors.
The sum of these divisors (counting 20155561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000110010101001
3
Ternary
1101221000020021
4
Quaternary
1030320302221
5
Quinary
20124434221
6
Senary
2000000441
8
Octal
114706251
10
Decimal
20155561
12
Duodecimal
6900121
16
Hexadecimal
1338ca9
20
Vigesimal
65j8i1
36
Base36
c004p
md5
eb6a4c003341a5d179d085b570a03435
sha1
ebe8eae6512eb06ad44b5bf7a65933f13bf5815c
sha256
97ef745bd8291e515c1e478c41019fd15c136a29133da39c875690d8fa54b8dc
sha512
9165769c5850541d266cfe7f4eeb24202e95dff1e3a1846dea634cc8b72715ad8a2d223d4e76eb354f80cf7db5f027ba2a6a085aedd8287f57cf945425526fc7
ripemd-160
5aa7b7a490c5a867d795e7c1f2430847abcd7d69
Diameter
40311122
Circumference
126641124.73316
Area
1.2762614573339E+15
Volume
3.429835420699E+22
Surface area
5.1050458293357E+15
Circumference
126641124.73316
Perimeter
80622244
Area
406246639224721
Diagonal
28504267.723438
Surface area
2437479835348326
Volume
8.1881289179389E+21
Space diagonal
34910455.707054
Perimeter
60466683
Area
1.7590995488533E+14
Altitude
17455227.853527
Surface area
1.7590995488533E+14
Volume
9.6498024718404E+20
Height
9501422.5744794