20403891 is an odd 8-digits composite number following 20403890
and preceding 20403892 . In scientific notation, it is written as 2.0403891 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 12886560 positive integers (up to 20403891) that are relatively prime to 20403891.
20403891 has 12 divisors, whose sum is 31023720
The reverse of 20403891 is 19830402
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred three thousand eight hundred ninety-one
Scientific notation
2.0403891 × 10^7
Engineering notation
2.0403891 × 10^6
Prime Factorization
3 × 3 × 19 × 119321
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6801297
Product of the distinct prime numbers
The prime factorization of 20403891 is 3 × 3 × 19 × 119321.
Since it has a total of 4 prime factors.
3 , 2 , 33 , 39 , 253 , 385 , 7442 , 4872 , 97316 , 70169 , 634554 , 413355 , 4973769 , 3463236 , 70447255 , 22887275 , 671480981 , 572228224 , 9149575011 , 8693883028
n×2
40807782
n×3
61211673
n×4
81615564
n×5
102019455
n÷2
10201945.5
n÷3
6801297
n÷3
5100972.75
n÷5
4080778.2
n2
416318767939881
n3
8.4945227622996E+21
n4
1.7332131653898E+29
n5
3.5364292506379E+36
2 √n
4517.066636657
3 √n
273.25681264016
4 √n
67.20912614115
5 √n
28.969606688653
1 , 3 , 9 , 19 , 57 , 171 , 119321 , 357963 , 1073889 , 2267099 , 6801297 , 20403891
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
-20403890
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 20403891 can be divided by 12 positive divisors.
The sum of these divisors (counting 20403891) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110101011010110011
3
Ternary
1102101121212200
4
Quaternary
1031311122303
5
Quinary
20210411031
6
Senary
2005154243
8
Octal
115653263
10
Decimal
20403891
12
Duodecimal
69bb983
16
Hexadecimal
13756b3
20
Vigesimal
67a9eb
36
Base36
c5bqr
md5
fa0c52508d8fba81d41ad968dad10d89
sha1
27a09eb1e204cfc58cdabdcaf0b7e8276194137a
sha256
37c64cc351d32dbe58f646b027892730ed31a318e1152d64840870f32c10c323
sha512
80beb6d716b47aef1f192878bd3ed76b2aa2126ff517923584f6cd5127e9586ee295c5e2cafacff008dd292653569edaea9376895b47519b72a899f4086b4a4e
ripemd-160
4f30b7949806fff0628e30a564103e4d9a656993
Diameter
40807782
Circumference
128201428.14049
Area
1.3079039829115E+15
Volume
3.5581773741056E+22
Surface area
5.2316159316459E+15
Circumference
128201428.14049
Perimeter
81615564
Area
416318767939881
Diagonal
28855459.377382
Surface area
2497912607639286
Volume
8.4945227622996E+21
Space diagonal
35340575.884097
Perimeter
61211673
Area
1.8027131455409E+14
Altitude
17670287.942049
Surface area
1.8027131455409E+14
Volume
1.0010891080276E+21
Height
9618486.4591274