20154745 is an odd 8-digits composite number following 20154744
and preceding 20154746 . In scientific notation, it is written as 2.0154745 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14535360 positive integers (up to 20154745) that are relatively prime to 20154745.
20154745 has 16 divisors, whose sum is 26655552
The reverse of 20154745 is 54745102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-four thousand seven hundred forty-five
Scientific notation
2.0154745 × 10^7
Engineering notation
2.0154745 × 10^6
Prime Factorization
5 × 43 × 13 × 7211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20154745
Product of the distinct prime numbers
The prime factorization of 20154745 is 5 × 43 × 13 × 7211.
Since it has a total of 4 prime factors.
8 , 7 , 88 , 11 , 893 , 131 , 2869 , 3666 , 30 , 82155 , 327609 , 613288 , 9162502 , 2475289 , 79225890 , 56159707 , 242132769 , 669968552 , 486745785 , 9086574154
n×2
40309490
n×3
60464235
n×4
80618980
n×5
100773725
n÷2
10077372.5
n÷3
6718248.3333333
n÷3
5038686.25
n÷5
4030949
n2
406213746015025
n3
8.1871344664276E+21
n4
1.6500960745156E+29
n5
3.3257265607363E+36
2 √n
4489.4036352282
3 √n
272.14003476297
4 √n
67.003012135487
5 √n
28.898510687939
1 , 5 , 13 , 43 , 65 , 215 , 559 , 2795 , 7211 , 36055 , 93743 , 310073 , 468715 , 1550365 , 4030949 , 20154745
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
-20154744
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 20154745 can be divided by 16 positive divisors.
The sum of these divisors (counting 20154745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000100101111001
3
Ternary
1101220222010001
4
Quaternary
1030320211321
5
Quinary
20124422440
6
Senary
1555553001
8
Octal
114704571
10
Decimal
20154745
12
Duodecimal
68bb761
16
Hexadecimal
1338979
20
Vigesimal
65j6h5
36
Base36
bzzi1
md5
807585f843c9c49c23b633f12db08be5
sha1
0ee23efb5d901b629dc6ed4030401342d65af8e6
sha256
21660fe4e16cd811b900b25a72e02a2f22bf6189406415ef11bea4ae25d511a6
sha512
d1e1d4c6a8da19f9b2229bd7bbd50783a33a9ef7ce1da845327fc2363ba537149b221d20267626147646667d10e33b7976a2368b82113f6a355c9324ea1ed712
ripemd-160
68e09d76bf20a9af865f49484e769726c36bd244
Diameter
40309490
Circumference
126635997.65395
Area
1.276158120268E+15
Volume
3.4294188658241E+22
Surface area
5.104632481072E+15
Circumference
126635997.65395
Perimeter
80618980
Area
406213746015025
Diagonal
28503113.725171
Surface area
2437282476090150
Volume
8.1871344664276E+21
Space diagonal
34909042.353595
Perimeter
60464235
Area
1.7589571170773E+14
Altitude
17454521.176797
Surface area
1.7589571170773E+14
Volume
9.6486304994951E+20
Height
9501037.9083904