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240545241 = 338909083
BaseRepresentation
bin11100101011001…
…10110111011001
3121202121222001000
432111212313121
5443034421431
635511415213
75650413036
oct1625466731
9552558030
10240545241
11113866222
1268684509
133aab2081
1423d3838d
15161b79e6
hexe566dd9

240545241 has 8 divisors (see below), whose sum is σ = 356363360. Its totient is φ = 160363476.

The previous prime is 240545203. The next prime is 240545267. The reversal of 240545241 is 142545042.

It is not a de Polignac number, because 240545241 - 214 = 240528857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8909083 = 240545241 / (2 + 4 + 0 + 5 + 4 + 5 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240545281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4454515 + ... + 4454568.

It is an arithmetic number, because the mean of its divisors is an integer number (44545420).

Almost surely, 2240545241 is an apocalyptic number.

It is an amenable number.

240545241 is a deficient number, since it is larger than the sum of its proper divisors (115818119).

240545241 is an equidigital number, since it uses as much as digits as its factorization.

240545241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8909092 (or 8909086 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 240545241 is about 15509.5209790632. The cubic root of 240545241 is about 621.9167537464.

The spelling of 240545241 in words is "two hundred forty million, five hundred forty-five thousand, two hundred forty-one".

Divisors: 1 3 9 27 8909083 26727249 80181747 240545241