20407988 is an even 8-digits composite number following 20407987
and preceding 20407989 . In scientific notation, it is written as 2.0407988 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 10203992 positive integers (up to 20407988) that are relatively prime to 20407988.
20407988 has 6 divisors, whose sum is 35713986
The reverse of 20407988 is 88970402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred seven thousand nine hundred eighty-eight
Scientific notation
2.0407988 × 10^7
Engineering notation
2.0407988 × 10^6
Prime Factorization
2 × 2 × 5101997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10203994
Product of the distinct prime numbers
The prime factorization of 20407988 is 2 × 2 × 5101997.
Since it has a total of 3 prime factors.
3 , 9 , 7 , 71 , 237 , 194 , 1835 , 672 , 41424 , 54013 , 256882 , 998689 , 8628258 , 2669436 , 51016147 , 47051678 , 726422638 , 246319219 , 4615558165 , 33571359
n×2
40815976
n×3
61223964
n×4
81631952
n×5
102039940
n÷2
10203994
n÷3
6802662.6666667
n÷3
5101997
n÷5
4081597.6
n2
416485974208144
n3
8.4996407638081E+21
n4
1.7346056671211E+29
n5
3.5399811639339E+36
2 √n
4517.5201161699
3 √n
273.2751009532
4 √n
67.212499701841
5 √n
28.970769985858
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
-20407987
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 20407988 can be divided by 6 positive divisors.
The sum of these divisors (counting 20407988) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101110110011010110100
3
Ternary
1102101211111102
4
Quaternary
1031312122310
5
Quinary
20211023423
6
Senary
2005225232
8
Octal
115663264
10
Decimal
20407988
12
Duodecimal
6a02218
16
Hexadecimal
13766b4
20
Vigesimal
67ajj8
36
Base36
c5ewk
md5
7455d3b68768aebce52e6fbca1eac46d
sha1
30af02e2056478f9998adb4263cd45966d1646af
sha256
d72ef4bca4d86acb338815c01c454f318b14ccb3204dbff01410ee60e374db4b
sha512
3450ddf9c81f2465ce874b21f8a48f2e6f5cbedc6e73c841ae62219376601475508ad8352e665f3e65ad0bef7394df0210332e857f9b4aa64b258e4d3be1b4ad
ripemd-160
56c71896c449192f7c258f89519d857e675d17ab
Diameter
40815976
Circumference
128227170.3507
Area
1.3084292768955E+15
Volume
3.5603211975643E+22
Surface area
5.233717107582E+15
Circumference
128227170.3507
Perimeter
81631952
Area
416485974208144
Diagonal
28861253.410347
Surface area
2498915845248864
Volume
8.4996407638081E+21
Space diagonal
35347672.096256
Perimeter
61223964
Area
1.8034371699208E+14
Altitude
17673836.048128
Surface area
1.8034371699208E+14
Volume
1.0016922702897E+21
Height
9620417.8034491