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13431468 = 2235961311
BaseRepresentation
bin110011001111…
…001010101100
3221021101111210
4303033022230
511414301333
61155514420
7222110541
oct63171254
927241453
1013431468
117644296
1245b8a10
132a2371b
141ad8bc8
1512a4a63
hexccf2ac

13431468 has 48 divisors (see below), whose sum is σ = 32497920. Its totient is φ = 4315200.

The previous prime is 13431433. The next prime is 13431497. The reversal of 13431468 is 86413431.

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 15 ways as a sum of consecutive naturals, for example, 43033 + ... + 43343.

It is an arithmetic number, because the mean of its divisors is an integer number (677040).

Almost surely, 213431468 is an apocalyptic number.

It is an amenable number.

13431468 is an abundant number, since it is smaller than the sum of its proper divisors (19066452).

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

13431468 is a wasteful number, since it uses less digits than its factorization.

13431468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 436 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 13431468 is about 3664.8967243294. The cubic root of 13431468 is about 237.7065564069.

Adding to 13431468 its reverse (86413431), we get a palindrome (99844899).

The spelling of 13431468 in words is "thirteen million, four hundred thirty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 59 61 118 122 177 183 236 244 311 354 366 622 708 732 933 1244 1866 3599 3732 7198 10797 14396 18349 18971 21594 36698 37942 43188 55047 56913 73396 75884 110094 113826 220188 227652 1119289 2238578 3357867 4477156 6715734 13431468