20403991 is an odd 8-digits composite number following 20403990
and preceding 20403992 . In scientific notation, it is written as 2.0403991 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20205792 positive integers (up to 20403991) that are relatively prime to 20403991.
20403991 has 4 divisors, whose sum is 20602192
The reverse of 20403991 is 19930402
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred three thousand nine hundred ninety-one
Scientific notation
2.0403991 × 10^7
Engineering notation
2.0403991 × 10^6
Prime Factorization
103 × 198097
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20403991
Product of the distinct prime numbers
The prime factorization of 20403991 is 103 × 198097.
Since it has a total of 2 prime factors.
4 , 8 , 58 , 2 , 75 , 60 , 1607 , 6314 , 64238 , 69365 , 251524 , 563182 , 746029 , 6444894 , 82463464 , 81824038 , 813892918 , 625558944 , 6790623867 , 438843812
n×2
40807982
n×3
61211973
n×4
81615964
n×5
102019955
n÷2
10201995.5
n÷3
6801330.3333333
n÷3
5100997.75
n÷5
4080798.2
n2
416322848728081
n3
8.4946476585421E+21
n4
1.7332471437306E+29
n5
3.5365159121456E+36
2 √n
4517.0777057739
3 √n
273.25725905234
4 √n
67.209208489417
5 √n
28.969635084756
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20403990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20403991 can be divided by 4 positive divisors.
The sum of these divisors (counting 20403991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101011100010111
3
Ternary
1102101122000101
4
Quaternary
1031311130113
5
Quinary
20210411431
6
Senary
2005154531
8
Octal
115653427
10
Decimal
20403991
12
Duodecimal
69bba47
16
Hexadecimal
1375717
20
Vigesimal
67a9jb
36
Base36
c5btj
md5
c62039ffbdff92693a4d93ae422f2d36
sha1
13042af1051ffdc176dc6de787aabac7cfd03207
sha256
741808f4a1e48f201e7601ac00f8cc24d43b32c1be9db25143409c87fd67d5f6
sha512
22b454c0f1960226ccb5f135fdc2d42e8a417a3353ca16dfb72e3a5fb299cea8e569e80ab530bf16d0b9b0402fc95a9483765b1be6037f0aba9d4ff6252a48e5
ripemd-160
7477ee298baa017b5a484fe499fa9810368fffea
Diameter
40807982
Circumference
128202056.45902
Area
1.3079168030857E+15
Volume
3.5582296905213E+22
Surface area
5.2316672123429E+15
Circumference
128202056.45902
Perimeter
81615964
Area
416322848728081
Diagonal
28855600.798739
Surface area
2497937092368486
Volume
8.4946476585421E+21
Space diagonal
35340749.089178
Perimeter
61211973
Area
1.8027308158721E+14
Altitude
17670374.544589
Surface area
1.8027308158721E+14
Volume
1.0011038271909E+21
Height
9618533.5995795