20397788 is an even 8-digits composite number following 20397787
and preceding 20397789 . In scientific notation, it is written as 2.0397788 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors.
There are 9847152 positive integers (up to 20397788) that are relatively prime to 20397788.
20397788 has 12 divisors, whose sum is 36927240
The reverse of 20397788 is 88779302
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million three hundred ninety-seven thousand seven hundred eighty-eight
Scientific notation
2.0397788 × 10^7
Engineering notation
2.0397788 × 10^6
Prime Factorization
2 × 2 × 29 × 175843
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10198894
Product of the distinct prime numbers
The prime factorization of 20397788 is 2 × 2 × 29 × 175843.
Since it has a total of 4 prime factors.
9 , 2 , 96 , 54 , 410 , 191 , 2030 , 9396 , 22681 , 73736 , 999730 , 139426 , 2342602 , 4281058 , 62067285 , 10733559 , 943891484 , 58114438 , 568657707 , 4808021600
n×2
40795576
n×3
61193364
n×4
81591152
n×5
101988940
n÷2
10198894
n÷3
6799262.6666667
n÷3
5099447
n÷5
4079557.6
n2
416069755292944
n3
8.4869026616773E+21
n4
1.7311404126953E+29
n5
3.5311435136391E+36
2 √n
4516.3910371003
3 √n
273.22956534324
4 √n
67.204099853359
5 √n
28.967873463685
1 , 2 , 4 , 29 , 58 , 116 , 175843 , 351686 , 703372 , 5099447 , 10198894 , 20397788
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
-20397787
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 20397788 can be divided by 12 positive divisors.
The sum of these divisors (counting 20397788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110011111011011100
3
Ternary
1102101022111122
4
Quaternary
1031303323130
5
Quinary
20210212123
6
Senary
2005110112
8
Octal
115637334
10
Decimal
20397788
12
Duodecimal
69b8338
16
Hexadecimal
1373edc
20
Vigesimal
679e98
36
Base36
c5718
md5
cd6efb6df8c7a55aa9dd9f8ab42e0a3d
sha1
92615773ae43401445cdedfefac75102b78967b9
sha256
5c669987303c452e79377792fc4691f68bb6b554b4fb44f12b18aaba1cd65346
sha512
8d049f049df2db0f4e216e02c6834f160718aefc20de6cfd3a0ffed962086ec6d4904df1c22f54dc001f8701974924bb7b6362a3d907c0c02fa0f597a83bb832
ripemd-160
ac5b71f42fb7dab1f4ee7b0bdd1330396f717019
Diameter
40795576
Circumference
128163081.86056
Area
1.3071216866092E+15
Volume
3.554985473821E+22
Surface area
5.2284867464369E+15
Circumference
128163081.86056
Perimeter
81591152
Area
416069755292944
Diagonal
28846828.432011
Surface area
2496418531757664
Volume
8.4869026616773E+21
Space diagonal
35330005.178019
Perimeter
61193364
Area
1.8016348891503E+14
Altitude
17665002.589009
Surface area
1.8016348891503E+14
Volume
1.000191070557E+21
Height
9615609.4773371