20189855 is an odd 8-digits composite number following 20189854
and preceding 20189856 . In scientific notation, it is written as 2.0189855 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 13792032 positive integers (up to 20189855) that are relatively prime to 20189855.
20189855 has 16 divisors, whose sum is 27793920
The reverse of 20189855 is 55898102
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred eighty-nine thousand eight hundred fifty-five
Scientific notation
2.0189855 × 10^7
Engineering notation
2.0189855 × 10^6
Prime Factorization
5 × 7 × 307 × 1879
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20189855
Product of the distinct prime numbers
The prime factorization of 20189855 is 5 × 7 × 307 × 1879.
Since it has a total of 4 prime factors.
6 , 7 , 34 , 96 , 654 , 33 , 7068 , 6069 , 95671 , 29245 , 662083 , 893955 , 2635135 , 3746069 , 16380727 , 14783966 , 659950137 , 683939965 , 9599491236 , 6055527913
n×2
40379710
n×3
60569565
n×4
80759420
n×5
100949275
n÷2
10094927.5
n÷3
6729951.6666667
n÷3
5047463.75
n÷5
4037971
n2
407630244921025
n3
8.22999553857E+21
n4
1.6616241657437E+29
n5
3.3547950970862E+36
2 √n
4493.3122526706
3 √n
272.29796769208
4 √n
67.032173265311
5 √n
28.90857204518
1 , 5 , 7 , 35 , 307 , 1535 , 1879 , 2149 , 9395 , 10745 , 13153 , 65765 , 576853 , 2884265 , 4037971 , 20189855
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
-20189854
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 20189855 can be divided by 16 positive divisors.
The sum of these divisors (counting 20189855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000001001010011111
3
Ternary
1101222202021102
4
Quaternary
1031001022133
5
Quinary
20132033410
6
Senary
2000423315
8
Octal
115011237
10
Decimal
20189855
12
Duodecimal
6917b3b
16
Hexadecimal
134129f
20
Vigesimal
663ecf
36
Base36
c0qlb
md5
d129909f89c6d6110fd940814d6e017e
sha1
b4248617b1d9c9ec247a7e46908b6000a9bd6aac
sha256
c89ba9a85aa108078106c09d4cc24ffca71e29ff0ef927b0f89776f7b749b1d3
sha512
4281478aa2ca41f44400636e78685c32d68f752a2a242547f27d100b3c07cf692d7ad45c4204d0802f69755548133e1f310d96aeb266cb382636c679f905fc69
ripemd-160
1295fe8e012c1c9c32157a12a41ea877b9fcf02c
Diameter
40379710
Circumference
126856600.29009
Area
1.2806081828249E+15
Volume
3.4473724697398E+22
Surface area
5.1224327312996E+15
Circumference
126856600.29009
Perimeter
80759420
Area
407630244921025
Diagonal
28552766.763346
Surface area
2445781469526150
Volume
8.22999553857E+21
Space diagonal
34969854.657449
Perimeter
60569565
Area
1.7650907372624E+14
Altitude
17484927.328724
Surface area
1.7650907372624E+14
Volume
9.6991427574298E+20
Height
9517588.9211154