20105688 is an even 8-digits composite number following 20105687
and preceding 20105689 . In scientific notation, it is written as 2.0105688 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 16 positive divisors.
There are 6701888 positive integers (up to 20105688) that are relatively prime to 20105688.
20105688 has 16 divisors, whose sum is 50264280
The reverse of 20105688 is 88650102
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred five thousand six hundred eighty-eight
Scientific notation
2.0105688 × 10^7
Engineering notation
2.0105688 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 837737
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5026422
Product of the distinct prime numbers
The prime factorization of 20105688 is 2 × 2 × 2 × 3 × 837737.
Since it has a total of 5 prime factors.
1 , 9 , 66 , 16 , 624 , 27 , 8162 , 5476 , 51250 , 10789 , 438460 , 187591 , 6287746 , 43047 , 93981278 , 81080180 , 242203086 , 92709456 , 8273586872 , 7070056037
n×2
40211376
n×3
60317064
n×4
80422752
n×5
100528440
n÷2
10052844
n÷3
6701896
n÷3
5026422
n÷5
4021137.6
n2
404238689953344
n3
8.1274969777307E+21
n4
1.634089184552E+29
n5
3.2854487308776E+36
2 √n
4483.9366632458
3 √n
271.91905751854
4 √n
66.962203243664
5 √n
28.884429075738
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 837737 , 1675474 , 2513211 , 3350948 , 5026422 , 6701896 , 10052844 , 20105688
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
-20105687
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 20105688 can be divided by 16 positive divisors.
The sum of these divisors (counting 20105688) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101100100111011000
3
Ternary
1101211110211010
4
Quaternary
1030230213120
5
Quinary
20121340223
6
Senary
1554533520
8
Octal
114544730
10
Decimal
20105688
12
Duodecimal
68972a0
16
Hexadecimal
132c9d8
20
Vigesimal
65d448
36
Base36
byxnc
md5
1f5dcd7c420178caf347aa9179f285b2
sha1
8d8c7da4adb41b13fbfde9263c9e579dc9c82c9c
sha256
f3c5e250b1b3893c7a3a6ed429ce934e0cdbfdde141b888747f46d867478ccae
sha512
8a8d6204926fbfe041dc1026dda2989d98c662d885aae9365c6a72503ac84917835b9263cb7d9a29c6fd67f08279e6c709eddb20fb601f785c0254137448d5c8
ripemd-160
c9324f916c8ec791e41afb45753cf04832e4f381
Diameter
40211376
Circumference
126327763.43234
Area
1.2699532986542E+15
Volume
3.4044379729749E+22
Surface area
5.0798131946168E+15
Circumference
126327763.43234
Perimeter
80422752
Area
404238689953344
Diagonal
28433736.650442
Surface area
2425432139720064
Volume
8.1274969777307E+21
Space diagonal
34824073.137128
Perimeter
60317064
Area
1.7504048734607E+14
Altitude
17412036.568564
Surface area
1.7504048734607E+14
Volume
9.5783470450442E+20
Height
9477912.216814