243945 is an odd 6-digits composite number following 243944
and preceding 243946 . In scientific notation, it is written as 2.43945 × 10^5.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 119232 positive integers (up to 243945) that are relatively prime to 243945.
243945 has 24 divisors, whose sum is 407680
The reverse of 243945 is 549342
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 27
Digital Root 9
Name
two hundred forty-three thousand nine hundred forty-five
Scientific notation
2.43945 × 10^5
Engineering notation
2.43945 × 10^3
Prime Factorization
15 × 3 × 3 × 13 × 139
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81315
Product of the distinct prime numbers
The prime factorization of 243945 is 15 × 3 × 3 × 13 × 139.
Since it has a total of 5 prime factors.
8 , 2 , 14 , 93 , 896 , 807 , 906 , 967 , 37243 , 64163 , 983818 , 969708 , 8922317 , 4963273 , 48026866 , 55902221 , 885032549 , 432133853 , 1979891490 , 3050881175
n×2
487890
n×3
731835
n×4
975780
n×5
1219725
n÷2
121972.5
n÷3
81315
n÷3
60986.25
n÷5
48789
n2
59509163025
n3
14516962774133625
n4
3.541340483936E+21
n5
8.6389230435377E+26
2 √n
493.90788614882
3 √n
62.483302206003
4 √n
22.224038475237
5 √n
11.952489867727
1 , 3 , 9 , 13 , 15 , 39 , 45 , 117 , 135 , 139 , 195 , 417 , 585 , 1251 , 1755 , 1807 , 2085 , 5421 , 6255 , 16263 , 18765 , 27105 , 81315 , 243945
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-243944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 243945 can be divided by 24 positive divisors.
The sum of these divisors (counting 243945) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111011100011101001
3
Ternary
110101122000
4
Quaternary
323203221
5
Quinary
30301240
6
Senary
5121213
8
Octal
734351
10
Decimal
243945
12
Duodecimal
b9209
16
Hexadecimal
3b8e9
20
Vigesimal
1a9h5
36
Base36
5889
md5
e75d2ffe591896e2850601af5b74cb6e
sha1
be03289db402eb817700c77652676c9749883dd5
sha256
ff4340735a5ab5fe33788583b51e4d92db9cd5c7cff9a27982b37d91c0a5575b
sha512
160ef2502cf3a7eb2fd44705b4796d26ad05c63200dbca0fe37175514d1b28aa23129990374ded33c94d12eeb54517f0628fd04a8e89956382182ee849886f40
ripemd-160
1b206a482d7f8f17db1533f6891aaae650459096
Diameter
487890
Circumference
1532751.6397599
Area
186953549380.62
Volume
6.080851147154E+16
Surface area
747814197522.47
Circumference
1532751.6397599
Perimeter
975780
Area
59509163025
Diagonal
344990.3274731
Surface area
357054978150
Volume
14516962774133625
Space diagonal
422525.13425239
Perimeter
731835
Area
25768223468.8
Altitude
211262.56712619
Surface area
25768223468.8
Volume
1.7108404699704E+15
Height
114996.77582437