20451685 is an odd 8-digits composite number following 20451684
and preceding 20451686 . In scientific notation, it is written as 2.0451685 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 16343040 positive integers (up to 20451685) that are relatively prime to 20451685.
20451685 has 8 divisors, whose sum is 24569496
The reverse of 20451685 is 58615402
Previous prime number is 1217
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million four hundred fifty-one thousand six hundred eighty-five
Scientific notation
2.0451685 × 10^7
Engineering notation
2.0451685 × 10^6
Prime Factorization
5 × 1217 × 3361
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451685
Product of the distinct prime numbers
The prime factorization of 20451685 is 5 × 1217 × 3361.
Since it has a total of 3 prime factors.
2 , 1 , 80 , 63 , 977 , 842 , 1583 , 8638 , 19255 , 20264 , 392038 , 574198 , 2008566 , 6346390 , 37318365 , 57256129 , 794239777 , 598906805 , 3377839140 , 327058405
n×2
40903370
n×3
61355055
n×4
81806740
n×5
102258425
n÷2
10225842.5
n÷3
6817228.3333333
n÷3
5112921.25
n÷5
4090337
n2
418271419339225
n3
8.5543553128287E+21
n4
1.7495098023605E+29
n5
3.5780423382289E+36
2 √n
4522.3539224612
3 √n
273.4700048542
4 √n
67.248449219749
5 √n
28.983165650661
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
-20451684
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 20451685 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451685) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000001000101100101
3
Ternary
1102111001102211
4
Quaternary
1032001011211
5
Quinary
20213423220
6
Senary
2010203421
8
Octal
116010545
10
Decimal
20451685
12
Duodecimal
6a23571
16
Hexadecimal
1381165
20
Vigesimal
67g945
36
Base36
c6cmd
md5
ee8c6c1bf092c20c3cc46ee592bbaee1
sha1
95b2f32a1880c7766ec2308155ca6afbe7464fd7
sha256
ddc322e908e6d1b9e85098d7b093e772d807aee85e2e4a6374bedda7bd1208b2
sha512
50a8c4656e5a5c89253a76523f1d4149c815c8591d5ecfe686f9a9b906dab3e8f387b6f7eda300962c234d884d55b70faae6195aa17c1925207f3c119bec29c4
ripemd-160
e013c665dbf95d39d3343e74b37025fa591d6ce5
Diameter
40903370
Circumference
128501726.69907
Area
1.3140384182027E+15
Volume
3.5832399742639E+22
Surface area
5.2561536728107E+15
Circumference
128501726.69907
Perimeter
81806740
Area
418271419339225
Diagonal
28923050.300382
Surface area
2509628516035350
Volume
8.5543553128287E+21
Space diagonal
35423357.520394
Perimeter
61355055
Area
1.8111683741237E+14
Altitude
17711678.760197
Surface area
1.8111683741237E+14
Volume
1.0081404417301E+21
Height
9641016.7667941