20155191 is an odd 8-digits composite number following 20155190
and preceding 20155192 . In scientific notation, it is written as 2.0155191 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 11370528 positive integers (up to 20155191) that are relatively prime to 20155191.
20155191 has 16 divisors, whose sum is 31104000
The reverse of 20155191 is 19155102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred fifty-five thousand one hundred ninety-one
Scientific notation
2.0155191 × 10^7
Engineering notation
2.0155191 × 10^6
Prime Factorization
3 × 7 × 79 × 12149
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20155191
Product of the distinct prime numbers
The prime factorization of 20155191 is 3 × 7 × 79 × 12149.
Since it has a total of 4 prime factors.
6 , 8 , 58 , 36 , 116 , 966 , 9920 , 4757 , 79086 , 49402 , 579309 , 801010 , 3862314 , 7491238 , 41788581 , 95526056 , 364215138 , 744848882 , 4891975884 , 429064840
n×2
40310382
n×3
60465573
n×4
80620764
n×5
100775955
n÷2
10077595.5
n÷3
6718397
n÷3
5038797.75
n÷5
4031038.2
n2
406231724246481
n3
8.1876779924472E+21
n4
1.6502421378427E+29
n5
3.3260945484468E+36
2 √n
4489.4533074752
3 √n
272.14204212418
4 √n
67.003382806208
5 √n
28.898638584587
1 , 3 , 7 , 21 , 79 , 237 , 553 , 1659 , 12149 , 36447 , 85043 , 255129 , 959771 , 2879313 , 6718397 , 20155191
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
-20155190
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 20155191 can be divided by 16 positive divisors.
The sum of these divisors (counting 20155191) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000101100110111
3
Ternary
1101220222201120
4
Quaternary
1030320230313
5
Quinary
20124431231
6
Senary
1555555023
8
Octal
114705467
10
Decimal
20155191
12
Duodecimal
68bba73
16
Hexadecimal
1338b37
20
Vigesimal
65j7jb
36
Base36
bzzuf
md5
a7383816515ae1ab23efb2b54a5e4b79
sha1
daa93a9e33e2acd0632943ffb3f702d707533c2b
sha256
28b55dbe8ee225c18a21a34889e288430a5cb5440b755fafd201dc1c94281016
sha512
9d53570421c328c17fbc494e0169023962c1618e14c6d04e623bc2bb05e67cea68858e836bc1fa4e4e33d251bf25c8b2fdae8b02063e0f6b04725f9b2d61cb99
ripemd-160
c284cf657e849cbf5cc1035778998f9c6ebe78a0
Diameter
40310382
Circumference
126638799.9546
Area
1.2762146005479E+15
Volume
3.4296465374708E+22
Surface area
5.1048584021914E+15
Circumference
126638799.9546
Perimeter
80620764
Area
406231724246481
Diagonal
28503744.46442
Surface area
2437390345478886
Volume
8.1876779924472E+21
Space diagonal
34909814.848255
Perimeter
60465573
Area
1.759034965103E+14
Altitude
17454907.424127
Surface area
1.759034965103E+14
Volume
9.6492710510521E+20
Height
9501248.1548067