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13663412 = 227487979
BaseRepresentation
bin110100000111…
…110010110100
3221201011200022
4310013302310
511444212122
61204504312
7224065010
oct64076264
927634608
1013663412
117792584
1246ab098
132aa5179
141b59540
1512ed642
hexd07cb4

13663412 has 12 divisors (see below), whose sum is σ = 27326880. Its totient is φ = 5855736.

The previous prime is 13663399. The next prime is 13663423. The reversal of 13663412 is 21436631.

13663412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13663412 is an admirable number.

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, 243962 + ... + 244017.

It is an arithmetic number, because the mean of its divisors is an integer number (2277240).

Almost surely, 213663412 is an apocalyptic number.

It is an amenable number.

13663412 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.

13663412 is a wasteful number, since it uses less digits than its factorization.

13663412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487990 (or 487988 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 13663412 is about 3696.4052808100. The cubic root of 13663412 is about 239.0670493417.

The spelling of 13663412 in words is "thirteen million, six hundred sixty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 487979 975958 1951916 3415853 6831706 13663412