20402870 is an even 8-digits composite number following 20402869
and preceding 20402871 . In scientific notation, it is written as 2.0402870 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 8161144 positive integers (up to 20402870) that are relatively prime to 20402870.
20402870 has 8 divisors, whose sum is 36725184
The reverse of 20402870 is 07820402
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred two thousand eight hundred seventy
Scientific notation
2.0402870 × 10^7
Engineering notation
2.0402870 × 10^6
Prime Factorization
2 × 5 × 2040287
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402870
Product of the distinct prime numbers
The prime factorization of 20402870 is 2 × 5 × 2040287.
Since it has a total of 3 prime factors.
1 , 1 , 69 , 50 , 459 , 367 , 6632 , 2053 , 35432 , 44217 , 16141 , 126409 , 9804220 , 1310552 , 16292757 , 41781049 , 547803075 , 596543157 , 5873711842 , 1734085752
n×2
40805740
n×3
61208610
n×4
81611480
n×5
102014350
n÷2
10201435
n÷3
6800956.6666667
n÷3
5100717.5
n÷5
4080574
n2
416277104236900
n3
8.4932476417219E+21
n4
1.7328662751186E+29
n5
3.5355445338629E+36
2 √n
4516.9536194209
3 √n
273.25225468829
4 √n
67.208285348021
5 √n
28.969316758066
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
-20402869
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 20402870 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402870) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101001010110110
3
Ternary
1102101120110212
4
Quaternary
1031311022312
5
Quinary
20210342440
6
Senary
2005145422
8
Octal
115651266
10
Decimal
20402870
12
Duodecimal
69bb272
16
Hexadecimal
13752b6
20
Vigesimal
67a73a
36
Base36
c5aye
md5
0ccbc17bb8ceb239a77824f1e9f01288
sha1
e9bd2d5a66d4d723ec7554161d80d71f43cd7b2f
sha256
7c3c161de2c56d7d9278369c46e97b7148b36afb7bd98aad1b50083c2ee98b34
sha512
049a6a201cf835fd3a9c737586703220d9c948f294475ac609076a00f8f809d422db21e7d31e9d0ff24c84b3da13ded343c7775af0181bde884274c780c8ce5e
ripemd-160
b0ba58df68c94ad0b751ef0da7ef4d9f6aeedc9f
Diameter
40805740
Circumference
128195013.0083
Area
1.3077730925283E+15
Volume
3.557643252847E+22
Surface area
5.2310923701131E+15
Circumference
128195013.0083
Perimeter
81611480
Area
416277104236900
Diagonal
28854015.465335
Surface area
2497662625421400
Volume
8.4932476417219E+21
Space diagonal
35338807.460223
Perimeter
61208610
Area
1.8025327364149E+14
Altitude
17669403.730111
Surface area
1.8025327364149E+14
Volume
1.0009388336264E+21
Height
9618005.1551117