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249253607 = 1493075449
BaseRepresentation
bin11101101101101…
…00111011100111
3122101000101200002
432312310323213
51002302103412
640422211515
76114422621
oct1666647347
9571011602
10249253607
11118773a19
126b583b9b
133c840a55
1425163c11
1516d37dc2
hexedb4ee7

249253607 has 8 divisors (see below), whose sum is σ = 251790000. Its totient is φ = 246729024.

The previous prime is 249253597. The next prime is 249253619. The reversal of 249253607 is 706352942.

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

It is a cyclic number.

It is not a de Polignac number, because 249253607 - 28 = 249253351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249253657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43019 + ... + 48467.

It is an arithmetic number, because the mean of its divisors is an integer number (31473750).

Almost surely, 2249253607 is an apocalyptic number.

249253607 is a deficient number, since it is larger than the sum of its proper divisors (2536393).

249253607 is a wasteful number, since it uses less digits than its factorization.

249253607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 249253607 is about 15787.7676382698. The cubic root of 249253607 is about 629.3329691600.

The spelling of 249253607 in words is "two hundred forty-nine million, two hundred fifty-three thousand, six hundred seven".

Divisors: 1 149 307 5449 45743 811901 1672843 249253607