20105749 is an odd 8-digits composite number following 20105748
and preceding 20105750 . In scientific notation, it is written as 2.0105749 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 19081920 positive integers (up to 20105749) that are relatively prime to 20105749.
20105749 has 8 divisors, whose sum is 21143232
The reverse of 20105749 is 94750102
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred five thousand seven hundred forty-nine
Scientific notation
2.0105749 × 10^7
Engineering notation
2.0105749 × 10^6
Prime Factorization
23 × 131 × 6673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105749
Product of the distinct prime numbers
The prime factorization of 20105749 is 23 × 131 × 6673.
Since it has a total of 3 prime factors.
9 , 8 , 100 , 10 , 240 , 686 , 8780 , 9530 , 48781 , 56703 , 773745 , 282177 , 1452882 , 2494016 , 36912076 , 18391373 , 173985544 , 512470541 , 6996578095 , 1378745301
n×2
40211498
n×3
60317247
n×4
80422996
n×5
100528745
n÷2
10052874.5
n÷3
6701916.3333333
n÷3
5026437.25
n÷5
4021149.8
n2
404241142851001
n3
8.1275709536354E+21
n4
1.6341090157348E+29
n5
3.2854985709002E+36
2 √n
4483.9434652993
3 √n
271.91933251611
4 √n
66.96225403389
5 √n
28.884446602599
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
-20105748
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 20105749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100101000010101
3
Ternary
1101211110220101
4
Quaternary
1030230220111
5
Quinary
20121340444
6
Senary
1554534101
8
Octal
114545025
10
Decimal
20105749
12
Duodecimal
6897331
16
Hexadecimal
132ca15
20
Vigesimal
65d479
36
Base36
byxp1
md5
fa83e0ec5457131e4935b1a3240b458a
sha1
31b78d033410a65c78d0ae7b568f17e463c56bb9
sha256
65c174e9372df8e548667009a707f38116d177343220733fc6d6c6f61dfc2a2a
sha512
ef602a1895e195957924f66d409cc5b738b2468049e5cfc5d75e24db8a4b4116e5cfcdff8558b2a550b34394359923fd7d4f183790a861374e05bd5fe1a9180e
ripemd-160
3059aa10a2e72602aa246f3fc17cda631fef4626
Diameter
40211498
Circumference
126328146.70664
Area
1.2699610046594E+15
Volume
3.4044689599294E+22
Surface area
5.0798440186378E+15
Circumference
126328146.70664
Perimeter
80422996
Area
404241142851001
Diagonal
28433822.917469
Surface area
2425446857106006
Volume
8.1275709536354E+21
Space diagonal
34824178.792227
Perimeter
60317247
Area
1.7504154948191E+14
Altitude
17412089.396114
Surface area
1.7504154948191E+14
Volume
9.578434226484E+20
Height
9477940.9724898