20808870 is an even 8-digits composite number following 20808869
and preceding 20808871 . In scientific notation, it is written as 2.0808870 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 5549024 positive integers (up to 20808870) that are relatively prime to 20808870.
20808870 has 16 divisors, whose sum is 49941360
The reverse of 20808870 is 07880802
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million eight hundred eight thousand eight hundred seventy
Scientific notation
2.0808870 × 10^7
Engineering notation
2.0808870 × 10^6
Prime Factorization
2 × 5 × 3 × 693629
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20808870
Product of the distinct prime numbers
The prime factorization of 20808870 is 2 × 5 × 3 × 693629.
Since it has a total of 4 prime factors.
6 , 9 , 5 , 57 , 832 , 518 , 1698 , 8515 , 11481 , 48286 , 452482 , 131385 , 9229591 , 4710063 , 27731762 , 75793843 , 189457503 , 567427564 , 4260440343 , 272351949
n×2
41617740
n×3
62426610
n×4
83235480
n×5
104044350
n÷2
10404435
n÷3
6936290
n÷3
5202217.5
n÷5
4161774
n2
433009070676900
n3
9.0104294605364E+21
n4
1.8749685528847E+29
n5
3.9015976871066E+36
2 √n
4561.6740348254
3 √n
275.05286036197
4 √n
67.540166085266
5 √n
29.083702891819
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 693629 , 1387258 , 2080887 , 3468145 , 4161774 , 6936290 , 10404435 , 20808870
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
-20808869
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 20808870 can be divided by 16 positive divisors.
The sum of these divisors (counting 20808870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000010010100110
3
Ternary
1110011012101220
4
Quaternary
1033120102212
5
Quinary
20311340440
6
Senary
2022001210
8
Octal
117302246
10
Decimal
20808870
12
Duodecimal
6b76206
16
Hexadecimal
13d84a6
20
Vigesimal
6a123a
36
Base36
ce086
md5
f218e6c1d2694979f9eaab8a427f55d6
sha1
db8b5c8dc5f89429317f168157e2cd0c547452bb
sha256
3c490756d62027850257c4600be9fae15d878017e231e9492241d377f0abcb3b
sha512
3596b083d8fa7dd7a2111bcba8123d2737d19e71d03b75b2bb0d0744e753bcaf341c79190203bd49dff188dd24b8667ef1a4243cba9637e8826426705d51a4e5
ripemd-160
3945414547fadf5935c0c88bf40d01e62ac48742
Diameter
41617740
Circumference
130745986.24301
Area
1.3603381153763E+15
Volume
3.7742798665214E+22
Surface area
5.4413524615052E+15
Circumference
130745986.24301
Perimeter
83235480
Area
433009070676900
Diagonal
29428186.171659
Surface area
2598054424061400
Volume
9.0104294605364E+21
Space diagonal
36042020.088096
Perimeter
62426610
Area
1.8749842763764E+14
Altitude
18021010.044048
Surface area
1.8749842763764E+14
Volume
1.0618892954914E+21
Height
9809395.3905529