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240240313 = 1923549749
BaseRepresentation
bin11100101000111…
…00011010111001
3121202001110202101
432110130122321
5443000142223
635501103401
75645003035
oct1624343271
9552043671
10240240313
11113678115
1268557b61
133aa06341
1423c991c5
15161574ad
hexe51c6b9

240240313 has 8 divisors (see below), whose sum is σ = 263880000. Its totient is φ = 217700208.

The previous prime is 240240293. The next prime is 240240337. The reversal of 240240313 is 313042042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-240240313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241240313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274438 + ... + 275311.

It is an arithmetic number, because the mean of its divisors is an integer number (32985000).

Almost surely, 2240240313 is an apocalyptic number.

240240313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

240240313 is a deficient number, since it is larger than the sum of its proper divisors (23639687).

240240313 is a wasteful number, since it uses less digits than its factorization.

240240313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549791.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240240313 is about 15499.6875129791. The cubic root of 240240313 is about 621.6538509898.

Adding to 240240313 its reverse (313042042), we get a palindrome (553282355).

The spelling of 240240313 in words is "two hundred forty million, two hundred forty thousand, three hundred thirteen".

Divisors: 1 19 23 437 549749 10445231 12644227 240240313