20403721 is an odd 8-digits composite number following 20403720
and preceding 20403722 . In scientific notation, it is written as 2.0403721 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 18834192 positive integers (up to 20403721) that are relatively prime to 20403721.
20403721 has 4 divisors, whose sum is 21973252
The reverse of 20403721 is 12730402
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million four hundred three thousand seven hundred twenty-one
Scientific notation
2.0403721 × 10^7
Engineering notation
2.0403721 × 10^6
Prime Factorization
13 × 1569517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20403721
Product of the distinct prime numbers
The prime factorization of 20403721 is 13 × 1569517.
Since it has a total of 2 prime factors.
1 , 8 , 70 , 49 , 66 , 114 , 6230 , 5061 , 31073 , 32593 , 477450 , 757266 , 7113020 , 2972643 , 15366372 , 30000501 , 576513763 , 759353884 , 2086492227 , 4800888943
n×2
40807442
n×3
61211163
n×4
81614884
n×5
102018605
n÷2
10201860.5
n÷3
6801240.3333333
n÷3
5100930.25
n÷5
4080744.2
n2
416311830645841
n3
8.494310441497E+21
n4
1.7331554033569E+29
n5
3.5362819299737E+36
2 √n
4517.047819096
3 √n
273.2560537361
4 √n
67.208986148401
5 √n
28.969558415021
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
-20403720
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 20403721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20403721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101011000001001
3
Ternary
1102101121122101
4
Quaternary
1031311120021
5
Quinary
20210404341
6
Senary
2005153401
8
Octal
115653011
10
Decimal
20403721
12
Duodecimal
69bb861
16
Hexadecimal
1375609
20
Vigesimal
67a961
36
Base36
c5bm1
md5
62c310fc89c6360e2acc2cd1c0d8bc65
sha1
e915b80934ca749fe39d81737ecb6f618b41d63c
sha256
bf51fb8d1126b0f37ca998371f3f7be2e8cd5111f31492f304be7785557c855e
sha512
df0feca721667bc98f4bba868cb038b1c6d5ff86632e125a7bc3870b750c7ed88dd99a680a9442fc752d81f8ba14a49549d17b845337ae20522e8abcdd5a851a
ripemd-160
69dcfa4ef643969ed246168fdeabf33ce8c79625
Diameter
40807442
Circumference
128200359.99899
Area
1.3078821887595E+15
Volume
3.5580884373757E+22
Surface area
5.231528755038E+15
Circumference
128200359.99899
Perimeter
81614884
Area
416311830645841
Diagonal
28855218.961077
Surface area
2497870983875046
Volume
8.494310441497E+21
Space diagonal
35340281.43546
Perimeter
61211163
Area
1.8026831061765E+14
Altitude
17670140.71773
Surface area
1.8026831061765E+14
Volume
1.001064085781E+21
Height
9618406.3203589