20808631 is an odd 8-digits composite number following 20808630
and preceding 20808632 . In scientific notation, it is written as 2.0808631 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20091064 positive integers (up to 20808631) that are relatively prime to 20808631.
20808631 has 4 divisors, whose sum is 21526200
The reverse of 20808631 is 13680802
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred eight thousand six hundred thirty-one
Scientific notation
2.0808631 × 10^7
Engineering notation
2.0808631 × 10^6
Prime Factorization
29 × 717539
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20808631
Product of the distinct prime numbers
The prime factorization of 20808631 is 29 × 717539.
Since it has a total of 2 prime factors.
4 , 3 , 50 , 65 , 897 , 244 , 714 , 9130 , 26711 , 70884 , 483737 , 74753 , 2724714 , 6603685 , 39251615 , 51827983 , 848318572 , 778515112 , 673289869 , 5087047550
n×2
41617262
n×3
62425893
n×4
83234524
n×5
104043155
n÷2
10404315.5
n÷3
6936210.3333333
n÷3
5202157.75
n÷5
4161726.2
n2
432999124094161
n3
9.0101189965986E+21
n4
1.8748824146631E+29
n5
3.9013736335114E+36
2 √n
4561.6478382269
3 √n
275.05180731928
4 √n
67.539972151511
5 √n
29.083636083415
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
-20808630
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 20808631 can be divided by 4 positive divisors.
The sum of these divisors (counting 20808631) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111011000001110110111
3
Ternary
1110011012002001
4
Quaternary
1033120032313
5
Quinary
20311334011
6
Senary
2022000131
8
Octal
117301667
10
Decimal
20808631
12
Duodecimal
6b76047
16
Hexadecimal
13d83b7
20
Vigesimal
6a11bb
36
Base36
ce01j
md5
4598f6daa476f3be07d033ee2cd861eb
sha1
6146984458681589d571ac99021cf5ff983d0494
sha256
8cf765fc628c73246d43f4f05a30d570608d10e3beb836ca93797e498e06d155
sha512
712a5143610c2318c2b5e16db59f7a8d872e21b2d8a25013d6ae80022c89c2bb90674ce3327284ce03765a18fa2886f1bfe2afe36b797b293d0cb5433c4c3212
ripemd-160
2525d05b3d9ea5362ea1d1be4ff2836e6f3d9feb
Diameter
41617262
Circumference
130744484.56172
Area
1.360306867265E+15
Volume
3.7741498196912E+22
Surface area
5.4412274690601E+15
Circumference
130744484.56172
Perimeter
83234524
Area
432999124094161
Diagonal
29427848.174617
Surface area
2597994744564966
Volume
9.0101189965986E+21
Space diagonal
36041606.127953
Perimeter
62425893
Area
1.8749412064098E+14
Altitude
18020803.063976
Surface area
1.8749412064098E+14
Volume
1.0618527069654E+21
Height
9809282.7248724