20155385 is an odd 8-digits composite number following 20155384
and preceding 20155386 . In scientific notation, it is written as 2.0155385 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 15942784 positive integers (up to 20155385) that are relatively prime to 20155385.
20155385 has 8 divisors, whose sum is 24458760
The reverse of 20155385 is 58355102
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-five thousand three hundred eighty-five
Scientific notation
2.0155385 × 10^7
Engineering notation
2.0155385 × 10^6
Prime Factorization
5 × 89 × 45293
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20155385
Product of the distinct prime numbers
The prime factorization of 20155385 is 5 × 89 × 45293.
Since it has a total of 3 prime factors.
2 , 2 , 42 , 26 , 120 , 27 , 1929 , 7287 , 83370 , 97728 , 618567 , 433254 , 3704568 , 309313 , 91431942 , 46369785 , 639877047 , 496211941 , 8476035257 , 8764326750
n×2
40310770
n×3
60466155
n×4
80621540
n×5
100776925
n÷2
10077692.5
n÷3
6718461.6666667
n÷3
5038846.25
n÷5
4031077
n2
406239544498225
n3
8.1879144215864E+21
n4
1.6503056751413E+29
n5
3.3262546250157E+36
2 √n
4489.4749136174
3 √n
272.14291527206
4 √n
67.00354403774
5 √n
28.898694216055
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
-20155384
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 20155385 can be divided by 8 positive divisors.
The sum of these divisors (counting 20155385) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000101111111001
3
Ternary
1101220222222202
4
Quaternary
1030320233321
5
Quinary
20124433020
6
Senary
1555555545
8
Octal
114705771
10
Decimal
20155385
12
Duodecimal
68bbbb5
16
Hexadecimal
1338bf9
20
Vigesimal
65j895
36
Base36
bzzzt
md5
6bfc22323f2410017cf00fb8a7e9535c
sha1
2d938c0e3d23c644711b648e641b144f4e504248
sha256
ef16d33729d49c2f8a10426e5b218c2d8a2f74c9acf733ad01e7f7fb75efe717
sha512
1194e88186c48a50e83c5336aba39cefdfc6bddba34b727d7681d155128578b679b4f90aa69e2308715361e49e4a76f1fe7f11c4e1ab2f4d0adcae34eb7b15ed
ripemd-160
e66773006924e4e9f8e4370b9606c3fb85179af2
Diameter
40310770
Circumference
126640018.89255
Area
1.2762391685933E+15
Volume
3.429745572677E+22
Surface area
5.1049566743732E+15
Circumference
126640018.89255
Perimeter
80621540
Area
406239544498225
Diagonal
28504018.821851
Surface area
2437437266989350
Volume
8.1879144215864E+21
Space diagonal
34910150.866112
Perimeter
60466155
Area
1.7590688277864E+14
Altitude
17455075.433056
Surface area
1.7590688277864E+14
Volume
9.6495496854647E+20
Height
9501339.6072837