20120785 is an odd 8-digits composite number following 20120784
and preceding 20120786 . In scientific notation, it is written as 2.0120785 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 15661440 positive integers (up to 20120785) that are relatively prime to 20120785.
20120785 has 4 divisors, whose sum is 20229732
The reverse of 20120785 is 58702102
Previous prime number is 185
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty thousand seven hundred eighty-five
Scientific notation
2.0120785 × 10^7
Engineering notation
2.0120785 × 10^6
Prime Factorization
185 × 108761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20120785
Product of the distinct prime numbers
The prime factorization of 20120785 is 185 × 108761.
Since it has a total of 2 prime factors.
7 , 9 , 53 , 80 , 379 , 76 , 6734 , 9431 , 37997 , 14597 , 964559 , 186597 , 2130890 , 6010525 , 83565559 , 37958827 , 339100637 , 798130245 , 8211712300 , 7175335071
n×2
40241570
n×3
60362355
n×4
80483140
n×5
100603925
n÷2
10060392.5
n÷3
6706928.3333333
n÷3
5030196.25
n÷5
4024157
n2
404845989016225
n3
8.1458191031078E+21
n4
1.6390027482253E+29
n5
3.2978021911449E+36
2 √n
4485.6198010977
3 √n
271.98710020282
4 √n
66.974769884619
5 √n
28.888765533266
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120785 can be divided by 4 positive divisors.
The sum of these divisors (counting 20120785) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000010011010001
3
Ternary
1101212020112021
4
Quaternary
1030300103101
5
Quinary
20122331120
6
Senary
1555131441
8
Octal
114602321
10
Decimal
20120785
12
Duodecimal
68a3b81
16
Hexadecimal
13304d1
20
Vigesimal
65f1j5
36
Base36
bz9ap
md5
50b7e2fabb8a397acd191d12e130da29
sha1
fec62890bdd419b417e23b65c3afd4b5588d16f5
sha256
3e21b5191921250fa9a9b1c5fb8aebecd1344d8ec8651ce477750370e354d4a2
sha512
397f8f7ee437c926d4ed06d8b0702efefe6988f027300bf72cb61ae85c191e0faca186df146e71dc6a8d01ed0555433c4bec0c9647d5153f8b6d3928c9b6e451
ripemd-160
b46984a8ce50387b7d22b2a40d956bf4bca9f5a2
Diameter
40241570
Circumference
126422620.68092
Area
1.2718611849287E+15
Volume
3.412112726906E+22
Surface area
5.0874447397147E+15
Circumference
126422620.68092
Perimeter
80483140
Area
404845989016225
Diagonal
28455087.032593
Surface area
2429075934097350
Volume
8.1458191031078E+21
Space diagonal
34850221.90817
Perimeter
60362355
Area
1.7530345555414E+14
Altitude
17425110.954085
Surface area
1.7530345555414E+14
Volume
9.5999398768774E+20
Height
9485029.0108644