20189729 is an odd 8-digits composite number following 20189728
and preceding 20189730 . In scientific notation, it is written as 2.0189729 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 17194320 positive integers (up to 20189729) that are relatively prime to 20189729.
20189729 has 8 divisors, whose sum is 23222208
The reverse of 20189729 is 92798102
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred eighty-nine thousand seven hundred twenty-nine
Scientific notation
2.0189729 × 10^7
Engineering notation
2.0189729 × 10^6
Prime Factorization
7 × 157 × 18371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20189729
Product of the distinct prime numbers
The prime factorization of 20189729 is 7 × 157 × 18371.
Since it has a total of 3 prime factors.
4 , 4 , 69 , 72 , 366 , 853 , 9830 , 6609 , 56514 , 39668 , 365969 , 231980 , 8935423 , 7387611 , 85685962 , 17490394 , 643711720 , 318306081 , 7249497677 , 997142131
n×2
40379458
n×3
60569187
n×4
80758916
n×5
100948645
n÷2
10094864.5
n÷3
6729909.6666667
n÷3
5047432.25
n÷5
4037945.8
n2
407625157093441
n3
8.229841455299E+21
n4
1.6615826869545E+29
n5
3.3546904160704E+36
2 √n
4493.2982318115
3 √n
272.29740124232
4 √n
67.032068682172
5 √n
28.908535962809
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
-20189728
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 20189729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20189729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001001000100001
3
Ternary
1101222202002202
4
Quaternary
1031001020201
5
Quinary
20132032404
6
Senary
2000422545
8
Octal
115011041
10
Decimal
20189729
12
Duodecimal
6917a55
16
Hexadecimal
1341221
20
Vigesimal
663e69
36
Base36
c0qht
md5
c6ba0e2efef6eed34cb977f8af04a5ff
sha1
4f6baac79283587a6a7ec6bd29f197f47196084c
sha256
eb271a8412222019ebd0530dad1aba4220046bf6d4529fa72d349f1367bd9106
sha512
940476923d4954a06d699e8710e225576ac1fceb98e6d8d7b262cbfd4c720aba3545a8c9adffbf191d72174ec4f236ac004de17889c6090d76bed577cb904a96
ripemd-160
63b2356c610a953272a8d88533760db1482e2f2b
Diameter
40379458
Circumference
126855808.60874
Area
1.2805921989431E+15
Volume
3.4473079274901E+22
Surface area
5.1223687957726E+15
Circumference
126855808.60874
Perimeter
80758916
Area
407625157093441
Diagonal
28552588.572437
Surface area
2445750942560646
Volume
8.229841455299E+21
Space diagonal
34969636.419047
Perimeter
60569187
Area
1.7650687063227E+14
Altitude
17484818.209523
Surface area
1.7650687063227E+14
Volume
9.6989611685535E+20
Height
9517529.5241458