20808437 is an odd 8-digits composite number following 20808436
and preceding 20808438 . In scientific notation, it is written as 2.0808437 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 19207776 positive integers (up to 20808437) that are relatively prime to 20808437.
20808437 has 4 divisors, whose sum is 22409100
The reverse of 20808437 is 73480802
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred eight thousand four hundred thirty-seven
Scientific notation
2.0808437 × 10^7
Engineering notation
2.0808437 × 10^6
Prime Factorization
13 × 1600649
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20808437
Product of the distinct prime numbers
The prime factorization of 20808437 is 13 × 1600649.
Since it has a total of 2 prime factors.
5 , 5 , 72 , 27 , 634 , 328 , 795 , 3355 , 39835 , 37055 , 165262 , 379345 , 9715931 , 2330918 , 53525729 , 95448391 , 379396111 , 462315320 , 7240467057 , 3220355272
n×2
41616874
n×3
62425311
n×4
83233748
n×5
104042185
n÷2
10404218.5
n÷3
6936145.6666667
n÷3
5202109.25
n÷5
4161687.4
n2
432991050382969
n3
9.0098669934578E+21
n4
1.8748124971175E+29
n5
3.9011917733082E+36
2 √n
4561.6265739317
3 √n
275.0509525423
4 √n
67.539814731251
5 √n
29.083581853548
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
-20808436
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 20808437 can be divided by 4 positive divisors.
The sum of these divisors (counting 20808437) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000001011110101
3
Ternary
1110011011210212
4
Quaternary
1033120023311
5
Quinary
20311332222
6
Senary
2021555205
8
Octal
117301365
10
Decimal
20808437
12
Duodecimal
6b75b05
16
Hexadecimal
13d82f5
20
Vigesimal
6a111h
36
Base36
cdzw5
md5
dfd4940a55753fe3b2c64d1f713cc50c
sha1
5b4903bac6e4e1584773b83250f3362e49e09f0f
sha256
ebdd372a96bb9a15a44438592b7041d3a9a4e581ae8bbb296f85e993d721904b
sha512
5aa2c0edf6b1311ddf4bd0eb10884697ec05d15e2186990970e41251d3ba1aad4e560b4f493ccccf6dd283a589733e321c0dce9ede6752a6eeee9453c9e3f8b3
ripemd-160
1241e607febfb070d70252e7b48b6ea821c9dd61
Diameter
41616874
Circumference
130743265.62377
Area
1.3602815029533E+15
Volume
3.7740442608624E+22
Surface area
5.4411260118131E+15
Circumference
130743265.62377
Perimeter
83233748
Area
432991050382969
Diagonal
29427573.817186
Surface area
2597946302297814
Volume
9.0098669934578E+21
Space diagonal
36041270.110096
Perimeter
62425311
Area
1.8749062462148E+14
Altitude
18020635.055048
Surface area
1.8749062462148E+14
Volume
1.0618230081105E+21
Height
9809191.2723954