20681288 is an even 8-digits composite number following 20681287
and preceding 20681289 . In scientific notation, it is written as 2.0681288 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 10340640 positive integers (up to 20681288) that are relatively prime to 20681288.
20681288 has 8 divisors, whose sum is 38777430
The reverse of 20681288 is 88218602
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million six hundred eighty-one thousand two hundred eighty-eight
Scientific notation
2.0681288 × 10^7
Engineering notation
2.0681288 × 10^6
Prime Factorization
2 × 2 × 2 × 2585161
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5170322
Product of the distinct prime numbers
The prime factorization of 20681288 is 2 × 2 × 2 × 2585161.
Since it has a total of 4 prime factors.
6 , 10 , 97 , 49 , 91 , 211 , 8583 , 1544 , 55080 , 59346 , 849109 , 107579 , 8563790 , 1814 , 88984699 , 39240345 , 856319176 , 355120728 , 6983465249 , 5872386301
n×2
41362576
n×3
62043864
n×4
82725152
n×5
103406440
n÷2
10340644
n÷3
6893762.6666667
n÷3
5170322
n÷5
4136257.6
n2
427715673338944
n3
8.8457110224366E+21
n4
1.8294069721979E+29
n5
3.7834492461232E+36
2 √n
4547.6684135939
3 √n
274.48957882497
4 √n
67.436402733197
5 √n
29.047951882047
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
-20681287
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 20681288 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681288) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001001001001000
3
Ternary
1102220201101122
4
Quaternary
1032321021020
5
Quinary
20243300123
6
Senary
2015134412
8
Octal
116711110
10
Decimal
20681288
12
Duodecimal
6b14408
16
Hexadecimal
13b9248
20
Vigesimal
695348
36
Base36
cb9s8
md5
e29c271d32f32ffb1839a9d7d189a6a2
sha1
8fbaac4b07bbb5f604669337e355b1f30cf3becc
sha256
cf0cd0c6b8163cbfa88437b3e9ef8936371729f196232c6d60ead359b381bf46
sha512
25fcf71c0f1b5d1490ffabb37e0f336824e53670789e56c7d246f1d6a77319e634f41032ad869435ea1521b8842de8eb0338c98391ade11269c35a0d6f77678a
ripemd-160
91d43d4240ee96b873994dc5c0ee6d1ab2e1591d
Diameter
41362576
Circumference
129944364.89515
Area
1.3437084171868E+15
Volume
3.7052827685154E+22
Surface area
5.3748336687474E+15
Circumference
129944364.89515
Perimeter
82725152
Area
427715673338944
Diagonal
29247757.976944
Surface area
2566294040033664
Volume
8.8457110224366E+21
Space diagonal
35821041.581965
Perimeter
62043864
Area
1.8520631935415E+14
Altitude
17910520.790982
Surface area
1.8520631935415E+14
Volume
1.0424770413969E+21
Height
9749252.6589813