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12072788 = 22713171951
BaseRepresentation
bin101110000011…
…011101010100
3211201100202022
4232003131110
511042312123
61110432312
7204421430
oct56033524
924640668
1012072788
1168a6512
124062698
132669180
1418639c0
1510d71c8
hexb83754

12072788 has 48 divisors (see below), whose sum is σ = 27546624. Its totient is φ = 4492800.

The previous prime is 12072773. The next prime is 12072791. The reversal of 12072788 is 88727021.

12072788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5213 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (573888).

Almost surely, 212072788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12072788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13773312).

12072788 is an abundant number, since it is smaller than the sum of its proper divisors (15473836).

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

12072788 is a wasteful number, since it uses less digits than its factorization.

12072788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 12072788 is about 3474.5917745830. The cubic root of 12072788 is about 229.4048127272.

The spelling of 12072788 in words is "twelve million, seventy-two thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 13 14 17 26 28 34 52 68 91 119 182 221 238 364 442 476 884 1547 1951 3094 3902 6188 7804 13657 25363 27314 33167 50726 54628 66334 101452 132668 177541 232169 355082 431171 464338 710164 862342 928676 1724684 3018197 6036394 12072788