20105742 is an even 8-digits composite number following 20105741
and preceding 20105743 . In scientific notation, it is written as 2.0105742 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 6672192 positive integers (up to 20105742) that are relatively prime to 20105742.
20105742 has 16 divisors, whose sum is 40389840
The reverse of 20105742 is 24750102
Previous prime number is 229
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred five thousand seven hundred forty-two
Scientific notation
2.0105742 × 10^7
Engineering notation
2.0105742 × 10^6
Prime Factorization
2 × 3 × 229 × 14633
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20105742
Product of the distinct prime numbers
The prime factorization of 20105742 is 2 × 3 × 229 × 14633.
Since it has a total of 4 prime factors.
9 , 6 , 40 , 49 , 554 , 302 , 8419 , 3300 , 38877 , 31694 , 373634 , 523056 , 260498 , 1827301 , 15050098 , 6600089 , 658068992 , 888891986 , 5482820430 , 2320603698
n×2
40211484
n×3
60317226
n×4
80422968
n×5
100528710
n÷2
10052871
n÷3
6701914
n÷3
5026435.5
n÷5
4021148.4
n2
404240861370564
n3
8.1275624645743E+21
n4
1.6341067400162E+29
n5
3.2854928515226E+36
2 √n
4483.9426847363
3 √n
271.91930095904
4 √n
66.96224820551
5 √n
28.884444591322
1 , 2 , 3 , 6 , 229 , 458 , 687 , 1374 , 14633 , 29266 , 43899 , 87798 , 3350957 , 6701914 , 10052871 , 20105742
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
-20105741
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 20105742 can be divided by 16 positive divisors.
The sum of these divisors (counting 20105742) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101100101000001110
3
Ternary
1101211110220010
4
Quaternary
1030230220032
5
Quinary
20121340432
6
Senary
1554534050
8
Octal
114545016
10
Decimal
20105742
12
Duodecimal
6897326
16
Hexadecimal
132ca0e
20
Vigesimal
65d472
36
Base36
byxou
md5
b51fc47ed485a56a5e40aa76e8e4364e
sha1
8f3ea960cc625ff77d402e8e467e355cbe453834
sha256
14f4f143075f8a5c6320fb6ebc9e96e2e454dd7d65b74b6e5a7c905a66e8b9ec
sha512
6dd16c15e4c7a60eb57d06fe6ba9d2796067ae3f0060e8bc2ccec4a73aa4e2ffbd04b29c075dce115fef61a83398023a4ec8b826ace2ee0a97bf208c77035b08
ripemd-160
5dd1f24cc04c21e7938f97998866b20de7406d13
Diameter
40211484
Circumference
126328102.72434
Area
1.2699601203626E+15
Volume
3.4044654040398E+22
Surface area
5.0798404814503E+15
Circumference
126328102.72434
Perimeter
80422968
Area
404240861370564
Diagonal
28433813.017974
Surface area
2425445168223384
Volume
8.1275624645743E+21
Space diagonal
34824166.667871
Perimeter
60317226
Area
1.7504142759731E+14
Altitude
17412083.333936
Surface area
1.7504142759731E+14
Volume
9.5784242220296E+20
Height
9477937.6726581