20145747 is an odd 8-digits composite number following 20145746
and preceding 20145748 . In scientific notation, it is written as 2.0145747 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13430496 positive integers (up to 20145747) that are relatively prime to 20145747.
20145747 has 4 divisors, whose sum is 26861000
The reverse of 20145747 is 74754102
Previous prime number is 3
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 forty-seven
Scientific notation
2.0145747 × 10^7
Engineering notation
2.0145747 × 10^6
Prime Factorization
3 × 6715249
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145747
Product of the distinct prime numbers
The prime factorization of 20145747 is 3 × 6715249.
Since it has a total of 2 prime factors.
9 , 6 , 62 , 56 , 70 , 39 , 471 , 228 , 99368 , 57731 , 139946 , 512548 , 7970564 , 9468163 , 1908519 , 42184856 , 719488709 , 782015724 , 3654282587 , 7620230320
n×2
40291494
n×3
60437241
n×4
80582988
n×5
100728735
n÷2
10072873.5
n÷3
6715249
n÷3
5036436.75
n÷5
4029149.4
n2
405851122188009
n3
8.1761740272657E+21
n4
1.6471513338127E+29
n5
3.3183094041702E+36
2 √n
4488.4013857943
3 √n
272.09953014847
4 √n
66.995532580869
5 √n
28.895929903641
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20145746
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20145747 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145747) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110011001010011
3
Ternary
1101220111202210
4
Quaternary
1030312121103
5
Quinary
20124130442
6
Senary
1555443203
8
Octal
114663123
10
Decimal
20145747
12
Duodecimal
68b6503
16
Hexadecimal
1336653
20
Vigesimal
65i477
36
Base36
bzsk3
md5
f95f1adc9d984f553dad7a86fe797e19
sha1
13f98e0d6c4942c45fb3901cc496104939a56272
sha256
710096532e1bb5a41557337af7670b62eef9ffa72a8365dffbc64b7b4ba4a289
sha512
2ace94ab411f2bd3cb42a3df37325864a10735be293e103c3cfbbe96163829d4020e56a5f443b4a3cf7ff6edcf63f4c0d82a836643aaccaba62f3a59117dae84
ripemd-160
9fa545b77f59d8257423f8d1e7fd96699af71176
Diameter
40291494
Circumference
126579461.55256
Area
1.275018903917E+15
Volume
3.424827767804E+22
Surface area
5.1000756156681E+15
Circumference
126579461.55256
Perimeter
80582988
Area
405851122188009
Diagonal
28490388.631537
Surface area
2435106733128054
Volume
8.1761740272657E+21
Space diagonal
34893457.360428
Perimeter
60437241
Area
1.7573869098462E+14
Altitude
17446728.680214
Surface area
1.7573869098462E+14
Volume
9.6357134980682E+20
Height
9496796.2105124