20720906 is an even 8-digits composite number following 20720905
and preceding 20720907 . In scientific notation, it is written as 2.0720906 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 9476208 positive integers (up to 20720906) that are relatively prime to 20720906.
20720906 has 16 divisors, whose sum is 33847200
The reverse of 20720906 is 60902702
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million seven hundred twenty thousand nine hundred six
Scientific notation
2.0720906 × 10^7
Engineering notation
2.0720906 × 10^6
Prime Factorization
2 × 19 × 29 × 18803
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20720906
Product of the distinct prime numbers
The prime factorization of 20720906 is 2 × 19 × 29 × 18803.
Since it has a total of 4 prime factors.
7 , 2 , 39 , 92 , 58 , 277 , 3872 , 5252 , 79814 , 29238 , 342641 , 678088 , 3569721 , 1982797 , 98127029 , 45102274 , 576840738 , 177633932 , 4910856948 , 4592887129
n×2
41441812
n×3
62162718
n×4
82883624
n×5
103604530
n÷2
10360453
n÷3
6906968.6666667
n÷3
5180226.5
n÷5
4144181.2
n2
429355945460836
n3
8.8966441864351E+21
n4
1.8434652790257E+29
n5
3.8198270760955E+36
2 √n
4552.0221879951
3 √n
274.66474185924
4 √n
67.468675605759
5 √n
29.059072475152
1 , 2 , 19 , 29 , 38 , 58 , 551 , 1102 , 18803 , 37606 , 357257 , 545287 , 714514 , 1090574 , 10360453 , 20720906
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
-20720905
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 20720906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20720906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000010110100001010
3
Ternary
1102222201201222
4
Quaternary
1033002310022
5
Quinary
20301032111
6
Senary
2020042042
8
Octal
117026412
10
Decimal
20720906
12
Duodecimal
6b33322
16
Hexadecimal
13c2d0a
20
Vigesimal
69a256
36
Base36
cc4cq
md5
82605855535f9aea564acaba90abcf8e
sha1
9dcdbb9211ed8f7c9eefccdf5beea92d44b79546
sha256
c965de3d0b6a2138b425fceb91cbfaab54340de4362fd01b26b3f84acd125dfe
sha512
74841944269b4c8f961a1663301798c8fd728a39a2f5a563ec757f591725bcb7dc74a6487d15126f664a1634c7e3da5cafd7f85e45de050aa35ada0a8013140a
ripemd-160
ecb677e44d52869fb1742a964b4ff829d03fffa3
Diameter
41441812
Circumference
130193292.13065
Area
1.3488614840349E+15
Volume
3.7266176023609E+22
Surface area
5.3954459361394E+15
Circumference
130193292.13065
Perimeter
82883624
Area
429355945460836
Diagonal
29303786.289858
Surface area
2576135672765016
Volume
8.8966441864351E+21
Space diagonal
35889661.970859
Perimeter
62162718
Area
1.8591657801748E+14
Altitude
17944830.985429
Surface area
1.8591657801748E+14
Volume
1.0484795723387E+21
Height
9767928.763286