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12816054 = 2324715149
BaseRepresentation
bin110000111000…
…111010110110
3220010010022200
4300320322312
511240103204
61134405330
7213635406
oct60707266
926103280
1012816054
117263989
124360846
132869584
1419b8806
1511d2539
hexc38eb6

12816054 has 24 divisors (see below), whose sum is σ = 28360800. Its totient is φ = 4180848.

The previous prime is 12816053. The next prime is 12816059. The reversal of 12816054 is 45061821.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816053) 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 11 ways as a sum of consecutive naturals, for example, 6729 + ... + 8420.

It is an arithmetic number, because the mean of its divisors is an integer number (1181700).

Almost surely, 212816054 is an apocalyptic number.

12816054 is an abundant number, since it is smaller than the sum of its proper divisors (15544746).

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

12816054 is a wasteful number, since it uses less digits than its factorization.

12816054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204 (or 15201 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12816054 is about 3579.9516756515. The cubic root of 12816054 is about 234.0191744095.

Adding to 12816054 its reverse (45061821), we get a palindrome (57877875).

The spelling of 12816054 in words is "twelve million, eight hundred sixteen thousand, fifty-four".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 15149 30298 45447 90894 136341 272682 712003 1424006 2136009 4272018 6408027 12816054