20105687 is an odd 8-digits composite number following 20105686
and preceding 20105688 . In scientific notation, it is written as 2.0105687 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 17213112 positive integers (up to 20105687) that are relatively prime to 20105687.
20105687 has 8 divisors, whose sum is 23005056
The reverse of 20105687 is 78650102
Previous prime number is 1667
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred five thousand six hundred eighty-seven
Scientific notation
2.0105687 × 10^7
Engineering notation
2.0105687 × 10^6
Prime Factorization
7 × 1667 × 1723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105687
Product of the distinct prime numbers
The prime factorization of 20105687 is 7 × 1667 × 1723.
Since it has a total of 3 prime factors.
9 , 7 , 47 , 97 , 220 , 682 , 7775 , 8964 , 65302 , 25809 , 861899 , 666257 , 426292 , 3768137 , 50809712 , 67574089 , 968386389 , 310471050 , 4730875652 , 4238668408
n×2
40211374
n×3
60317061
n×4
80422748
n×5
100528435
n÷2
10052843.5
n÷3
6701895.6666667
n÷3
5026421.75
n÷5
4021137.4
n2
404238649741969
n3
8.1274957650147E+21
n4
1.6340888594521E+29
n5
3.2854479138331E+36
2 √n
4483.9365517367
3 √n
271.91905301038
4 √n
66.962202411037
5 √n
28.884428788412
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
-20105686
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 20105687 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105687) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100100111010111
3
Ternary
1101211110211002
4
Quaternary
1030230213113
5
Quinary
20121340222
6
Senary
1554533515
8
Octal
114544727
10
Decimal
20105687
12
Duodecimal
689729b
16
Hexadecimal
132c9d7
20
Vigesimal
65d447
36
Base36
byxnb
md5
7080973beb91d7b52a53f78c30467f54
sha1
e478c0d2c6995eb84268db2951d39540edf0e91a
sha256
a956bf3fd1e53b57346927998e46b92ff29a66ef48fc81540bf5f3ed17cc6bfc
sha512
74f2594ca8effb4394a40121c88702521779cfa089b2941ddcd2a50a11f66e682efb2b0e66c1312bb240a5edac4089d681f0a53aeee30514de887d0c95463bd8
ripemd-160
97cf9e41aad43208594234e1af34f5f0857fcdf3
Diameter
40211374
Circumference
126327757.14915
Area
1.2699531723264E+15
Volume
3.4044374649936E+22
Surface area
5.0798126893057E+15
Circumference
126327757.14915
Perimeter
80422748
Area
404238649741969
Diagonal
28433735.236228
Surface area
2425431898451814
Volume
8.1274957650147E+21
Space diagonal
34824071.405077
Perimeter
60317061
Area
1.7504046993403E+14
Altitude
17412035.702539
Surface area
1.7504046993403E+14
Volume
9.5783456158447E+20
Height
9477911.7454095