20120391 is an odd 8-digits composite number following 20120390
and preceding 20120392 . In scientific notation, it is written as 2.0120391 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors.
There are 13413588 positive integers (up to 20120391) that are relatively prime to 20120391.
20120391 has 6 divisors, whose sum is 29062800
The reverse of 20120391 is 19302102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred twenty thousand three hundred ninety-one
Scientific notation
2.0120391 × 10^7
Engineering notation
2.0120391 × 10^6
Prime Factorization
3 × 3 × 2235599
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6706797
Product of the distinct prime numbers
The prime factorization of 20120391 is 3 × 3 × 2235599.
Since it has a total of 3 prime factors.
10 , 1 , 53 , 68 , 641 , 712 , 8879 , 4047 , 53105 , 8806 , 689988 , 313641 , 30904 , 3050123 , 93044845 , 38560408 , 803794712 , 769039256 , 6263855456 , 7194690839
n×2
40240782
n×3
60361173
n×4
80481564
n×5
100601955
n÷2
10060195.5
n÷3
6706797
n÷3
5030097.75
n÷5
4024078.2
n2
404830133992881
n3
8.1453405845192E+21
n4
1.6388743738869E+29
n5
3.2974793202485E+36
2 √n
4485.5758827602
3 √n
271.98532486425
4 √n
66.974442011563
5 √n
28.888652393915
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120391 can be divided by 6 positive divisors.
The sum of these divisors (counting 20120391) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110000001101000111
3
Ternary
1101212012222200
4
Quaternary
1030300031013
5
Quinary
20122323031
6
Senary
1555125543
8
Octal
114601507
10
Decimal
20120391
12
Duodecimal
68a38b3
16
Hexadecimal
1330347
20
Vigesimal
65f0jb
36
Base36
bz8zr
md5
7906333dd942704a00db8e5f30fecc94
sha1
dd270478118c18c051ca644dd823c3d2494dad85
sha256
9c30172c819c7af827a3f7d5ed2b61510fe9f1f3d6f01b0586432aec5456700e
sha512
0f6555b0a29fe346ff9d324951cffffaafc55ff55d754647d8d8b29446df68eb89c05f7aa89e8224b5f9f265a976ea0900688839a3db62d94f3bb1a4298f4860
ripemd-160
706df619a0910e0a508fec264a672450da1abe1d
Diameter
40240782
Circumference
126420145.10591
Area
1.2718113749038E+15
Volume
3.4119122855083E+22
Surface area
5.0872454996152E+15
Circumference
126420145.10591
Perimeter
80481564
Area
404830133992881
Diagonal
28454529.83245
Surface area
2428980803957286
Volume
8.1453405845192E+21
Space diagonal
34849539.480152
Perimeter
60361173
Area
1.7529659012765E+14
Altitude
17424769.740076
Surface area
1.7529659012765E+14
Volume
9.5993759373125E+20
Height
9484843.2774832