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249434349 = 31311913323
BaseRepresentation
bin11101101111000…
…01000011101101
3122101100120121020
432313201003231
51002323344344
640430124353
76116104563
oct1667410355
9571316536
10249434349
1111888779a
126b6506b9
133c8a50b8
14251ada33
1516d71719
hexede10ed

249434349 has 16 divisors (see below), whose sum is σ = 336973824. Its totient is φ = 164106800.

The previous prime is 249434309. The next prime is 249434371. The reversal of 249434349 is 943434942.

It is a cyclic number.

It is not a de Polignac number, because 249434349 - 216 = 249368813 is a prime.

It is a super-2 number, since 2×2494343492 = 124434988922107602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249434349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249434309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73402 + ... + 76724.

It is an arithmetic number, because the mean of its divisors is an integer number (21060864).

Almost surely, 2249434349 is an apocalyptic number.

It is an amenable number.

249434349 is a deficient number, since it is larger than the sum of its proper divisors (87539475).

249434349 is a wasteful number, since it uses less digits than its factorization.

249434349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648.

The product of its digits is 373248, while the sum is 42.

The square root of 249434349 is about 15793.4907161147. The cubic root of 249434349 is about 629.4850490945.

It can be divided in two parts, 24943 and 4349, that added together give a palindrome (29292).

The spelling of 249434349 in words is "two hundred forty-nine million, four hundred thirty-four thousand, three hundred forty-nine".

Divisors: 1 3 131 191 393 573 3323 9969 25021 75063 435313 634693 1305939 1904079 83144783 249434349