20145749 is an odd 8-digits composite number following 20145748
and preceding 20145750 . In scientific notation, it is written as 2.0145749 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17954496 positive integers (up to 20145749) that are relatively prime to 20145749.
20145749 has 8 divisors, whose sum is 22443960
The reverse of 20145749 is 94754102
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred forty-five thousand seven hundred forty-nine
Scientific notation
2.0145749 × 10^7
Engineering notation
2.0145749 × 10^6
Prime Factorization
13 × 29 × 53437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20145749
Product of the distinct prime numbers
The prime factorization of 20145749 is 13 × 29 × 53437.
Since it has a total of 3 prime factors.
4 , 3 , 64 , 21 , 626 , 391 , 5925 , 2721 , 30594 , 37181 , 586903 , 121890 , 220318 , 7513586 , 96174014 , 98058926 , 445166145 , 847829331 , 5003804013 , 5694237269
n×2
40291498
n×3
60437247
n×4
80582996
n×5
100728745
n÷2
10072874.5
n÷3
6715249.6666667
n÷3
5036437.25
n÷5
4029149.8
n2
405851202771001
n3
8.1761764623727E+21
n4
1.6471519879067E+29
n5
3.3183110513219E+36
2 √n
4488.4016085907
3 √n
272.09953915284
4 √n
66.99553424364
5 √n
28.895930477379
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
-20145748
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 20145749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20145749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110110011001010101
3
Ternary
1101220111202212
4
Quaternary
1030312121111
5
Quinary
20124130444
6
Senary
1555443205
8
Octal
114663125
10
Decimal
20145749
12
Duodecimal
68b6505
16
Hexadecimal
1336655
20
Vigesimal
65i479
36
Base36
bzsk5
md5
08624dc038ca5176abefbc2822c55580
sha1
68e59ca2de0bc7ff9c7b78847cf96460f7c64207
sha256
9cb58791c44f8743034dca680414588ab9980aad8fd0eb347a51c61d7d76f529
sha512
c68bd175ef02efbdad2c25e4acbb4685f922ead4570184a19f7270e4c05d1b30b8eb1e7aac9515ad209942efcf52cfcd6f5458f79d542ade99311e2d7b110096
ripemd-160
18cbbf6519c904d4e0e156c5148dcadb02a9820e
Diameter
40291498
Circumference
126579474.11893
Area
1.275019157076E+15
Volume
3.4248287878192E+22
Surface area
5.1000766283038E+15
Circumference
126579474.11893
Perimeter
80582996
Area
405851202771001
Diagonal
28490391.459964
Surface area
2435107216626006
Volume
8.1761764623727E+21
Space diagonal
34893460.82453
Perimeter
60437247
Area
1.7573872587808E+14
Altitude
17446730.412265
Surface area
1.7573872587808E+14
Volume
9.6357163678693E+20
Height
9496797.1533214