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12039412 = 2271139089
BaseRepresentation
bin101101111011…
…010011110100
3211122122222011
4231323103310
511040230122
61110014004
7204222220
oct55732364
924578864
1012039412
116883430
124047304
132656c18
141855780
1510cc377
hexb7b4f4

12039412 has 24 divisors (see below), whose sum is σ = 26268480. Its totient is φ = 4690560.

The previous prime is 12039409. The next prime is 12039413. The reversal of 12039412 is 21493021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19237 + ... + 19852.

It is an arithmetic number, because the mean of its divisors is an integer number (1094520).

Almost surely, 212039412 is an apocalyptic number.

It is an amenable number.

12039412 is an abundant number, since it is smaller than the sum of its proper divisors (14229068).

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

12039412 is a wasteful number, since it uses less digits than its factorization.

12039412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39111 (or 39109 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12039412 is about 3469.7855841536. The cubic root of 12039412 is about 229.1932161564.

The spelling of 12039412 in words is "twelve million, thirty-nine thousand, four hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 39089 78178 156356 273623 429979 547246 859958 1094492 1719916 3009853 6019706 12039412