20403921 is an odd 8-digits composite number following 20403920
and preceding 20403922 . In scientific notation, it is written as 2.0403921 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12590160 positive integers (up to 20403921) that are relatively prime to 20403921.
20403921 has 8 divisors, whose sum is 21369600
The reverse of 20403921 is 12930402
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred three thousand nine hundred twenty-one
Scientific notation
2.0403921 × 10^7
Engineering notation
2.0403921 × 10^6
Prime Factorization
69 × 31 × 9539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20403921
Product of the distinct prime numbers
The prime factorization of 20403921 is 69 × 31 × 9539.
Since it has a total of 3 prime factors.
10 , 7 , 31 , 85 , 896 , 261 , 9093 , 1355 , 40521 , 94763 , 429896 , 917512 , 2786075 , 9226830 , 69720318 , 33158390 , 926843902 , 304466856 , 5135689499 , 20272830
n×2
40807842
n×3
61211763
n×4
81615684
n×5
102019605
n÷2
10201960.5
n÷3
6801307
n÷3
5100980.25
n÷5
4080784.2
n2
416319992174241
n3
8.4945602310438E+21
n4
1.7332233588396E+29
n5
3.5364552489118E+36
2 √n
4517.0699573949
3 √n
273.25694656397
4 √n
67.209150845662
5 √n
28.969615207495
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20403920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20403921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20403921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101011011010001
3
Ternary
1102101121220210
4
Quaternary
1031311123101
5
Quinary
20210411141
6
Senary
2005154333
8
Octal
115653321
10
Decimal
20403921
12
Duodecimal
69bb9a9
16
Hexadecimal
13756d1
20
Vigesimal
67a9g1
36
Base36
c5brl
md5
155cb6b739f382dc2cd326667be48815
sha1
03f7b5abc86df82bdbf48e7076de0226e0ac876b
sha256
5a67537c6730aae5ac45a2acbf11c5900c126f3e70701fab772bf1811c3234b7
sha512
0fcadff0e0eb39321ddd79ee16ba5581dd676eb84651ea7a5f695749c25fe4a9572d68699023e95efae729db7beb80536466fbd904fa3d65d0d4127ace0fc28a
ripemd-160
4055ca7840d34d63c54181bade00828ab6399b9d
Diameter
40807842
Circumference
128201616.63605
Area
1.3079078289572E+15
Volume
3.5581930689764E+22
Surface area
5.2316313158286E+15
Circumference
128201616.63605
Perimeter
81615684
Area
416319992174241
Diagonal
28855501.803789
Surface area
2497919953045446
Volume
8.4945602310438E+21
Space diagonal
35340627.845622
Perimeter
61211763
Area
1.8027184466312E+14
Altitude
17670313.922811
Surface area
1.8027184466312E+14
Volume
1.0010935237614E+21
Height
9618500.6012631