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257468 = 22191337
BaseRepresentation
bin111110110110111100
3111002011212
4332312330
531214333
65303552
72121431
oct766674
9432155
10257468
11166492
12104bb8
1390263
1469b88
1551448
hex3edbc

257468 has 12 divisors (see below), whose sum is σ = 454272. Its totient is φ = 127680.

The previous prime is 257459. The next prime is 257473. The reversal of 257468 is 864752.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 257468.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 596 + ... + 932.

It is an arithmetic number, because the mean of its divisors is an integer number (37856).

2257468 is an apocalyptic number.

It is an amenable number.

257468 is a deficient number, since it is larger than the sum of its proper divisors (196804).

257468 is a wasteful number, since it uses less digits than its factorization.

257468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 257468 is about 507.4130467381. The cubic root of 257468 is about 63.6171808600.

The spelling of 257468 in words is "two hundred fifty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 191 337 382 674 764 1348 64367 128734 257468