20402421 is an odd 8-digits composite number following 20402420
and preceding 20402422 . In scientific notation, it is written as 2.0402421 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors.
There are 12467520 positive integers (up to 20402421) that are relatively prime to 20402421.
20402421 has 16 divisors, whose sum is 29500800
The reverse of 20402421 is 12420402
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million four hundred two thousand four hundred twenty-one
Scientific notation
2.0402421 × 10^7
Engineering notation
2.0402421 × 10^6
Prime Factorization
3 × 13 × 149 × 3511
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20402421
Product of the distinct prime numbers
The prime factorization of 20402421 is 3 × 13 × 149 × 3511.
Since it has a total of 4 prime factors.
5 , 4 , 18 , 93 , 318 , 222 , 5595 , 8204 , 91248 , 93324 , 115020 , 430557 , 6192755 , 9559686 , 46281384 , 60784801 , 131700601 , 763541537 , 7673930360 , 3138134764
n×2
40804842
n×3
61207263
n×4
81609684
n×5
102012105
n÷2
10201210.5
n÷3
6800807
n÷3
5100605.25
n÷5
4080484.2
n2
416258782661241
n3
8.4926869288021E+21
n4
1.7327137414262E+29
n5
3.5351555225062E+36
2 √n
4516.9039175081
3 √n
273.25025021273
4 √n
67.207915586693
5 √n
28.969189253085
1 , 3 , 13 , 39 , 149 , 447 , 1937 , 3511 , 5811 , 10533 , 45643 , 136929 , 523139 , 1569417 , 6800807 , 20402421
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402421 can be divided by 16 positive divisors.
The sum of these divisors (counting 20402421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101000011110101
3
Ternary
1102101112212020
4
Quaternary
1031311003311
5
Quinary
20210334141
6
Senary
2005143353
8
Octal
115650365
10
Decimal
20402421
12
Duodecimal
69bab59
16
Hexadecimal
13750f5
20
Vigesimal
67a611
36
Base36
c5alx
md5
abe14b3b3a2a5b112c24756e905a7ac2
sha1
56b502ba3204daa2d9692c3f5a93b1989d9ce4f6
sha256
2837ed7e6f45cbe98463a7c1017364f245096476a1750405893fb9b7451bd6c2
sha512
056227d044095fbf3c5d36ad4e6b56913cea28cd8678fa4f328cbb7e38554743cf91cd1408605d596f0de21ad7e9686574cde2ce69ec38023ada3fb5607a3f33
ripemd-160
207e5e8b544920e94ccf93f02a0b711ffe37c83d
Diameter
40804842
Circumference
128192191.85809
Area
1.3077155336008E+15
Volume
3.5574083819684E+22
Surface area
5.2308621344031E+15
Circumference
128192191.85809
Perimeter
81609684
Area
416258782661241
Diagonal
28853380.483446
Surface area
2497552695967446
Volume
8.4926869288021E+21
Space diagonal
35338029.76941
Perimeter
61207263
Area
1.8024534016651E+14
Altitude
17669014.884705
Surface area
1.8024534016651E+14
Volume
1.0008727529751E+21
Height
9617793.4944819