20455985 is an odd 8-digits composite number following 20455984
and preceding 20455986 . In scientific notation, it is written as 2.0455985 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 14877040 positive integers (up to 20455985) that are relatively prime to 20455985.
20455985 has 8 divisors, whose sum is 26778816
The reverse of 20455985 is 58955402
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred fifty-five thousand nine hundred eighty-five
Scientific notation
2.0455985 × 10^7
Engineering notation
2.0455985 × 10^6
Prime Factorization
5 × 11 × 371927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20455985
Product of the distinct prime numbers
The prime factorization of 20455985 is 5 × 11 × 371927.
Since it has a total of 3 prime factors.
6 , 7 , 45 , 15 , 798 , 279 , 9394 , 2145 , 66481 , 15028 , 986375 , 969277 , 2981598 , 5892845 , 49196062 , 91566970 , 425657828 , 336586067 , 3752628060 , 2382904384
n×2
40911970
n×3
61367955
n×4
81823940
n×5
102279925
n÷2
10227992.5
n÷3
6818661.6666667
n÷3
5113996.25
n÷5
4091197
n2
418447322320225
n3
8.5597521486727E+21
n4
1.7509816155697E+29
n5
3.5818053663369E+36
2 √n
4522.8293136045
3 √n
273.48916934876
4 √n
67.251983715014
5 √n
28.98438429971
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
-20455984
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 20455985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20455985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000010001000110001
3
Ternary
1102111021100002
4
Quaternary
1032002020301
5
Quinary
20214042420
6
Senary
2010235345
8
Octal
116021061
10
Decimal
20455985
12
Duodecimal
6a25b55
16
Hexadecimal
1382231
20
Vigesimal
67gjj5
36
Base36
c6fxt
md5
b4c6ad3bb66bd4474599327ad5ad81b3
sha1
70e7f612fcf652fb57fb6731589953f1dee94740
sha256
54ae8ea433d990e1274d3b3b53bf72802bf2aa6ca5cc08e9fafc15552b840287
sha512
26a8ceb118db7581fb021c774f79f5b878d2abb63140c8eca5b1766be40f21bce2d2dfd0d70ab63e0e9546889cc46215b01674e488b73d5b43980a7f684cf6f8
ripemd-160
0889c7068c6a05d1ba85fd4d36a51a2c0f3f2835
Diameter
40911970
Circumference
128528744.39589
Area
1.3145910337155E+15
Volume
3.5855005955759E+22
Surface area
5.2583641348622E+15
Circumference
128528744.39589
Perimeter
81823940
Area
418447322320225
Diagonal
28929131.418701
Surface area
2510683933921350
Volume
8.5597521486727E+21
Space diagonal
35430805.338867
Perimeter
61367955
Area
1.8119300563744E+14
Altitude
17715402.669433
Surface area
1.8119300563744E+14
Volume
1.0087764649338E+21
Height
9643043.8062335