20403988 is an even 8-digits composite number following 20403987
and preceding 20403989 . In scientific notation, it is written as 2.0403988 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 18 positive divisors.
There are 9274320 positive integers (up to 20403988) that are relatively prime to 20403988.
20403988 has 18 divisors, whose sum is 39249098
The reverse of 20403988 is 88930402
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million four hundred three thousand nine hundred eighty-eight
Scientific notation
2.0403988 × 10^7
Engineering notation
2.0403988 × 10^6
Prime Factorization
2 × 2 × 11 × 11 × 42157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
927454
Product of the distinct prime numbers
The prime factorization of 20403988 is 2 × 2 × 11 × 11 × 42157.
Since it has a total of 5 prime factors.
8 , 6 , 89 , 68 , 929 , 242 , 8330 , 5144 , 11671 , 84126 , 404267 , 833474 , 6995537 , 3438853 , 8061503 , 78032870 , 185241732 , 65244842 , 1918418297 , 277580115
n×2
40807976
n×3
61211964
n×4
81615952
n×5
102019940
n÷2
10201994
n÷3
6801329.3333333
n÷3
5100997
n÷5
4080797.6
n2
416322726304144
n3
8.494643911637E+21
n4
1.7332461243732E+29
n5
3.5365133122756E+36
2 √n
4517.0773737008
3 √n
273.25724566
4 √n
67.209206018974
5 √n
28.969634232874
1 , 2 , 4 , 11 , 22 , 44 , 121 , 242 , 484 , 42157 , 84314 , 168628 , 463727 , 927454 , 1854908 , 5100997 , 10201994 , 20403988
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20403987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20403988 can be divided by 18 positive divisors.
The sum of these divisors (counting 20403988) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1001101110101011100010100
3
Ternary
1102101122000021
4
Quaternary
1031311130110
5
Quinary
20210411423
6
Senary
2005154524
8
Octal
115653424
10
Decimal
20403988
12
Duodecimal
69bba44
16
Hexadecimal
1375714
20
Vigesimal
67a9j8
36
Base36
c5btg
md5
7c250a836cd77fe3c56b1983ca6d6ab0
sha1
eaab821b7d875654b8994494bf9a4c2ae5b0a667
sha256
7a585a610701b32dcad083bf7d2f2a641ad4147208c5a2cfe682f27e0591f248
sha512
48a02906ef789be59e48d0bc52502d02d202510e87c2265cda0dab84da3eedfda7c32bc56414c22f53bc19f1105fc3374b111aa1a870e85e7e337503cc69ba8c
ripemd-160
cff7c209111ef414682988e10b68efccc7c774ba
Diameter
40807976
Circumference
128202037.60947
Area
1.3079164184796E+15
Volume
3.5582281210214E+22
Surface area
5.2316656739183E+15
Circumference
128202037.60947
Perimeter
81615952
Area
416322726304144
Diagonal
28855596.556098
Surface area
2497936357824864
Volume
8.494643911637E+21
Space diagonal
35340743.893026
Perimeter
61211964
Area
1.8027302857609E+14
Altitude
17670371.946513
Surface area
1.8027302857609E+14
Volume
1.0011033856139E+21
Height
9618532.185366