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240015025 = 5241234161
BaseRepresentation
bin11100100111001…
…01011010110001
3121201122000201101
432103211122301
5442420440100
635452204401
75643044155
oct1623453261
9551560641
10240015025
11113533928
1268469701
133a957933
1423c3b065
151611086a
hexe4e56b1

240015025 has 12 divisors (see below), whose sum is σ = 304878924. Its totient is φ = 187328000.

The previous prime is 240015023. The next prime is 240015059. The reversal of 240015025 is 520510042.

It can be written as a sum of positive squares in 6 ways, for example, as 55815841 + 184199184 = 7471^2 + 13572^2 .

It is not a de Polignac number, because 240015025 - 21 = 240015023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240014993 and 240015011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240015023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116056 + ... + 118105.

It is an arithmetic number, because the mean of its divisors is an integer number (25406577).

Almost surely, 2240015025 is an apocalyptic number.

240015025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240015025 is a deficient number, since it is larger than the sum of its proper divisors (64863899).

240015025 is a wasteful number, since it uses less digits than its factorization.

240015025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234212 (or 234207 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 240015025 is about 15492.4183070301. The cubic root of 240015025 is about 621.4594693003.

Adding to 240015025 its reverse (520510042), we get a palindrome (760525067).

The spelling of 240015025 in words is "two hundred forty million, fifteen thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 234161 1170805 5854025 9600601 48003005 240015025