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12738308 = 22112967149
BaseRepresentation
bin110000100101…
…111100000100
3212222011200012
4300211330010
511230111213
61133005352
7213162632
oct60457404
925864605
1012738308
117210530
124323858
13284007b
141998352
1511b94a8
hexc25f04

12738308 has 48 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 5470080.

The previous prime is 12738307. The next prime is 12738311. The reversal of 12738308 is 80383721.

It is not an unprimeable number, because it can be changed into a prime (12738301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85418 + ... + 85566.

It is an arithmetic number, because the mean of its divisors is an integer number (535500).

Almost surely, 212738308 is an apocalyptic number.

It is an amenable number.

12738308 is an abundant number, since it is smaller than the sum of its proper divisors (12965692).

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

12738308 is a wasteful number, since it uses less digits than its factorization.

12738308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 12738308 is about 3569.0766312871. The cubic root of 12738308 is about 233.5450042941.

The spelling of 12738308 in words is "twelve million, seven hundred thirty-eight thousand, three hundred eight".

Divisors: 1 2 4 11 22 29 44 58 67 116 134 149 268 298 319 596 638 737 1276 1474 1639 1943 2948 3278 3886 4321 6556 7772 8642 9983 17284 19966 21373 39932 42746 47531 85492 95062 109813 190124 219626 289507 439252 579014 1158028 3184577 6369154 12738308