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249304449 = 3312680693
BaseRepresentation
bin11101101110000…
…01010110000001
3122101002222102010
432313001112001
51002310220244
640423243133
76115024062
oct1667012601
9571088363
10249304449
111187a9139
126b5a94a9
133c85ac34
1425178569
1516d47eb9
hexedc1581

249304449 has 8 divisors (see below), whose sum is σ = 343128832. Its totient is φ = 160841520.

The previous prime is 249304427. The next prime is 249304457. The reversal of 249304449 is 944403942.

It is a happy number.

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

It is not a de Polignac number, because 249304449 - 29 = 249303937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249304459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340254 + ... + 1340439.

It is an arithmetic number, because the mean of its divisors is an integer number (42891104).

Almost surely, 2249304449 is an apocalyptic number.

It is an amenable number.

249304449 is a deficient number, since it is larger than the sum of its proper divisors (93824383).

249304449 is a wasteful number, since it uses less digits than its factorization.

249304449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680727.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 249304449 is about 15789.3777268137. The cubic root of 249304449 is about 629.3757560654.

The spelling of 249304449 in words is "two hundred forty-nine million, three hundred four thousand, four hundred forty-nine".

Divisors: 1 3 31 93 2680693 8042079 83101483 249304449