20145729 is an odd 8-digits composite number following 20145728
and preceding 20145730 . In scientific notation, it is written as 2.0145729 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13401936 positive integers (up to 20145729) that are relatively prime to 20145729.
20145729 has 8 divisors, whose sum is 26918080
The reverse of 20145729 is 92754102
Previous prime number is 487
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred forty-five thousand seven hundred twenty-nine
Scientific notation
2.0145729 × 10^7
Engineering notation
2.0145729 × 10^6
Prime Factorization
3 × 487 × 13789
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145729
Product of the distinct prime numbers
The prime factorization of 20145729 is 3 × 487 × 13789.
Since it has a total of 3 prime factors.
8 , 6 , 65 , 6 , 122 , 788 , 3433 , 9439 , 85234 , 77458 , 61947 , 38065 , 8942853 , 3139512 , 98610820 , 4584777 , 925328913 , 425332722 , 8786788285 , 138517485
n×2
40291458
n×3
60437187
n×4
80582916
n×5
100728645
n÷2
10072864.5
n÷3
6715243
n÷3
5036432.25
n÷5
4029145.8
n2
405850396941441
n3
8.1761521113247E+21
n4
1.6471454469753E+29
n5
3.3182945798347E+36
2 √n
4488.3993806256
3 √n
272.09944910915
4 √n
66.995517615924
5 √n
28.895924740001
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
-20145728
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 20145729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110011001000001
3
Ternary
1101220111202010
4
Quaternary
1030312121001
5
Quinary
20124130404
6
Senary
1555443133
8
Octal
114663101
10
Decimal
20145729
12
Duodecimal
68b64a9
16
Hexadecimal
1336641
20
Vigesimal
65i469
36
Base36
bzsjl
md5
da121dd00370859c1cdc28e2e96d398a
sha1
31ea4a5bb198d1675c23009aa1dd34b2ce82c0b6
sha256
a7103f904af6d9d76d4c32f284d566ab871718097ce10b95efd4c91b9802eb42
sha512
bd419a2b38266713a2536dd1bced46cb4a20f653292bfca1a73ad3f15b881390e6198a6ed7bca9247f461e164a0c0349d53f534870742e6995f6f8c7e6a3ef6e
ripemd-160
b4888f3e1a336064cccee8b00a111f9add2ca613
Diameter
40291458
Circumference
126579348.45522
Area
1.2750166254877E+15
Volume
3.424818587676E+22
Surface area
5.1000665019509E+15
Circumference
126579348.45522
Perimeter
80582916
Area
405850396941441
Diagonal
28490363.175693
Surface area
2435102381648646
Volume
8.1761521113247E+21
Space diagonal
34893426.183514
Perimeter
60437187
Area
1.7573837694364E+14
Altitude
17446713.091757
Surface area
1.7573837694364E+14
Volume
9.635687669884E+20
Height
9496787.725231