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12990348 = 2233717183
BaseRepresentation
bin110001100011…
…011110001100
3220102222102000
4301203132030
511311142343
61142232300
7215262510
oct61433614
926388360
1012990348
117372928
124425690
1328ca9c7
141a22140
151218ed3
hexc6378c

12990348 has 48 divisors (see below), whose sum is σ = 38492160. Its totient is φ = 3711312.

The previous prime is 12990323. The next prime is 12990361. The reversal of 12990348 is 84309921.

12990348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×129903482 = 337498282322208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7836 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (801920).

Almost surely, 212990348 is an apocalyptic number.

12990348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12990348 is an abundant number, since it is smaller than the sum of its proper divisors (25501812).

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

12990348 is a wasteful number, since it uses less digits than its factorization.

12990348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203 (or 17195 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 12990348 is about 3604.2125353536. The cubic root of 12990348 is about 235.0752618452.

The spelling of 12990348 in words is "twelve million, nine hundred ninety thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 17183 34366 51549 68732 103098 120281 154647 206196 240562 309294 360843 463941 481124 618588 721686 927882 1082529 1443372 1855764 2165058 3247587 4330116 6495174 12990348