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13404412 = 227478729
BaseRepresentation
bin110011001000…
…100011111100
3221020000101201
4303020203330
511412420122
61155145244
7221635630
oct63104374
927200351
1013404412
117625a2a
1245a5224
132a14308
141accdc0
15129ba27
hexcc88fc

13404412 has 12 divisors (see below), whose sum is σ = 26808880. Its totient is φ = 5744736.

The previous prime is 13404407. The next prime is 13404427. The reversal of 13404412 is 21440431.

13404412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13404412 is an admirable number.

It is a super-2 number, since 2×134044122 = 359356522131488, 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 13404412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239337 + ... + 239392.

Almost surely, 213404412 is an apocalyptic number.

It is an amenable number.

13404412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13404412 is a wasteful number, since it uses less digits than its factorization.

13404412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478740 (or 478738 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13404412 is about 3661.2036272242. The cubic root of 13404412 is about 237.5468391460.

Adding to 13404412 its reverse (21440431), we get a palindrome (34844843).

The spelling of 13404412 in words is "thirteen million, four hundred four thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 478729 957458 1914916 3351103 6702206 13404412