20391012 is an even 8-digits composite number following 20391011
and preceding 20391013 . In scientific notation, it is written as 2.0391012 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 6796992 positive integers (up to 20391012) that are relatively prime to 20391012.
20391012 has 12 divisors, whose sum is 39649260
The reverse of 20391012 is 21019302
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million three hundred ninety-one thousand twelve
Scientific notation
2.0391012 × 10^7
Engineering notation
2.0391012 × 10^6
Prime Factorization
2 × 2 × 9 × 566417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10195506
Product of the distinct prime numbers
The prime factorization of 20391012 is 2 × 2 × 9 × 566417.
Since it has a total of 4 prime factors.
10 , 2 , 80 , 39 , 680 , 26 , 7934 , 6570 , 84374 , 2597 , 835269 , 846498 , 2082813 , 3401910 , 47656656 , 41135400 , 742370282 , 986765091 , 1342431494 , 3067604619
n×2
40782024
n×3
61173036
n×4
81564048
n×5
101955060
n÷2
10195506
n÷3
6797004
n÷3
5097753
n÷5
4078202.4
n2
415793370384144
n3
8.4784476050235E+21
n4
1.7288412685541E+29
n5
3.5252823053181E+36
2 √n
4515.6408183114
3 √n
273.19930702013
4 √n
67.198517977046
5 √n
28.965948623621
1 , 2 , 4 , 9 , 18 , 36 , 566417 , 1132834 , 2265668 , 5097753 , 10195506 , 20391012
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20391011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20391012 can be divided by 12 positive divisors.
The sum of these divisors (counting 20391012) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110010010001100100
3
Ternary
1102100222012200
4
Quaternary
1031302101210
5
Quinary
20210003022
6
Senary
2005014500
8
Octal
115622144
10
Decimal
20391012
12
Duodecimal
69b4430
16
Hexadecimal
1372464
20
Vigesimal
678hac
36
Base36
c51t0
md5
f8df01602642969eeb61c6a95cbac449
sha1
a3658ac34454a5143028a36d5267c8f4e613315f
sha256
78ec667d64e2b2e9e184c207f25c24244a9747bc9df62387ff0e23555e945453
sha512
eba4011ccbac79e8a75e25f5fb3a2801ec931e48fe02687a84b975ebfa3beec65f7d139c90dda78b3618a91f74ff28c5c059008aba40c20d4301f0c7dc456860
ripemd-160
8fb7785d8ec0c81618714cd5e15cba294bdfe36c
Diameter
40782024
Circumference
128120506.99692
Area
1.3062533978102E+15
Volume
3.5514438279717E+22
Surface area
5.2250135912407E+15
Circumference
128120506.99692
Perimeter
81564048
Area
415793370384144
Diagonal
28837245.720913
Surface area
2494760222304864
Volume
8.4784476050235E+21
Space diagonal
35318268.801747
Perimeter
61173036
Area
1.8004381073891E+14
Altitude
17659134.400873
Surface area
1.8004381073891E+14
Volume
9.991946325745E+20
Height
9612415.2403042