249145 is an odd 6-digits composite number following 249144
and preceding 249146 . In scientific notation, it is written as 2.49145 × 10^5.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 183936 positive integers (up to 249145) that are relatively prime to 249145.
249145 has 8 divisors, whose sum is 322056
The reverse of 249145 is 541942
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 25
Digital Root 7
Name
two hundred forty-nine thousand one hundred forty-five
Scientific notation
2.49145 × 10^5
Engineering notation
2.49145 × 10^3
Prime Factorization
5 × 13 × 3833
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
249145
Product of the distinct prime numbers
The prime factorization of 249145 is 5 × 13 × 3833.
Since it has a total of 3 prime factors.
7 , 5 , 28 , 29 , 285 , 715 , 1686 , 9617 , 16767 , 90707 , 271013 , 215778 , 5914745 , 9790040 , 16652891 , 36413809 , 411244718 , 98260367 , 5961067512 , 488674260
n×2
498290
n×3
747435
n×4
996580
n×5
1245725
n÷2
124572.5
n÷3
83048.333333333
n÷3
62286.25
n÷5
49829
n2
62073231025
n3
15465235143723625
n4
3.853086009883E+21
n5
9.5997711393231E+26
2 √n
499.14426772227
3 √n
62.924154969322
4 √n
22.341536825435
5 √n
12.003017386502
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
-249144
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 249145 can be divided by 8 positive divisors.
The sum of these divisors (counting 249145) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110100111001
3
Ternary
110122202121
4
Quaternary
330310321
5
Quinary
30433040
6
Senary
5201241
8
Octal
746471
10
Decimal
249145
12
Duodecimal
100221
16
Hexadecimal
3cd39
20
Vigesimal
1b2h5
36
Base36
5c8p
md5
b5b38c318f03c86dda666295fe5c22f9
sha1
29c640111e7725d582fa998ecfd39ceb2f62cecf
sha256
3674093829d9f3a4cb836cbd93be1fdd81584b9ffaf1575dd065a8d41263b945
sha512
18867aba7ff360a51e7e68102bc5e61f14b91c03142f03ebbdca67ce0ad7ff349d82ff16337f46fb2011fd26312d7c41dc73e14a2e59828bedab9e125efc2a56
ripemd-160
4c985435455cc36e907791c5f44b917e77160548
Diameter
498290
Circumference
1565424.2033573
Area
195008806572.72
Volume
6.4780625484748E+16
Surface area
780035226290.89
Circumference
1565424.2033573
Perimeter
996580
Area
62073231025
Diagonal
352344.23799744
Surface area
372439386150
Volume
15465235143723625
Space diagonal
431531.79845175
Perimeter
747435
Area
26878497481.315
Altitude
215765.89922587
Surface area
26878497481.315
Volume
1.8225954404619E+15
Height
117448.07933248