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12557468 = 2271140771
BaseRepresentation
bin101111111001…
…110010011100
3212121222121102
4233321302130
511203314333
61125052232
7211510460
oct57716234
925558542
1012557468
1170a7680
124257078
1327a8971
14194c4a0
151180ae8
hexbf9c9c

12557468 has 24 divisors (see below), whose sum is σ = 27398784. Its totient is φ = 4892400.

The previous prime is 12557453. The next prime is 12557473. The reversal of 12557468 is 86475521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20078 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (1141616).

Almost surely, 212557468 is an apocalyptic number.

It is an amenable number.

12557468 is an abundant number, since it is smaller than the sum of its proper divisors (14841316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12557468 is a wasteful number, since it uses less digits than its factorization.

12557468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40793 (or 40791 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 12557468 is about 3543.6517887625. The cubic root of 12557468 is about 232.4345551339.

The spelling of 12557468 in words is "twelve million, five hundred fifty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 40771 81542 163084 285397 448481 570794 896962 1141588 1793924 3139367 6278734 12557468