20807830 is an even 8-digits composite number following 20807829
and preceding 20807831 . In scientific notation, it is written as 2.0807830 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 7833472 positive integers (up to 20807830) that are relatively prime to 20807830.
20807830 has 8 divisors, whose sum is 31579200
The reverse of 20807830 is 03870802
Previous prime number is 85
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred seven thousand eight hundred thirty
Scientific notation
2.0807830 × 10^7
Engineering notation
2.0807830 × 10^6
Prime Factorization
2 × 85 × 122399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20807830
Product of the distinct prime numbers
The prime factorization of 20807830 is 2 × 85 × 122399.
Since it has a total of 3 prime factors.
4 , 1 , 69 , 52 , 152 , 938 , 2742 , 1108 , 32453 , 53781 , 121868 , 240735 , 4601673 , 8923203 , 17165570 , 46366661 , 692029220 , 557599254 , 4861159258 , 4011075278
n×2
41615660
n×3
62423490
n×4
83231320
n×5
104039150
n÷2
10403915
n÷3
6935943.3333333
n÷3
5201957.5
n÷5
4161566
n2
432965789308900
n3
9.0090785397554E+21
n4
1.8745937471188E+29
n5
3.9006228009111E+36
2 √n
4561.5600401617
3 √n
275.04827802536
4 √n
67.539322177245
5 √n
29.08341217295
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
-20807829
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 20807830 can be divided by 8 positive divisors.
The sum of these divisors (counting 20807830) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000000010010110
3
Ternary
1110011010222101
4
Quaternary
1033120002112
5
Quinary
20311322310
6
Senary
2021552314
8
Octal
117300226
10
Decimal
20807830
12
Duodecimal
6b7569a
16
Hexadecimal
13d8096
20
Vigesimal
6a0jba
36
Base36
cdzfa
md5
0a90b874289fcac09c5be8de30fd049d
sha1
62946af2f000207be52cfdb763e0af88a8f9eb50
sha256
4b9a83efcf5074536c946020f390eaa0684ef886075ca2ff65ce47f446490356
sha512
df87bf56df3a278ab2681bac1df8149661eede8ae968db873428da22aeced8c9b44a971bdfe585579f63891d0aca5c16649c243406a57be4f2a88f47973ce749
ripemd-160
590c05fc5259cc10740be549e441bab18a7f7ce6
Diameter
41615660
Circumference
130739451.73029
Area
1.3602021429485E+15
Volume
3.7737139941479E+22
Surface area
5.4408085717942E+15
Circumference
130739451.73029
Perimeter
83231320
Area
432965789308900
Diagonal
29426715.389554
Surface area
2597794735853400
Volume
9.0090785397554E+21
Space diagonal
36040218.755256
Perimeter
62423490
Area
1.8747968625554E+14
Altitude
18020109.377628
Surface area
1.8747968625554E+14
Volume
1.0617300879505E+21
Height
9808905.1298513