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12313284 = 2232941863
BaseRepresentation
bin101110111110…
…001011000100
3212011120122120
4232332023010
511123011114
61115525540
7206442534
oct56761304
925146576
1012313284
116a50175
1241598b0
132721789
1418c74c4
1511335a9
hexbbe2c4

12313284 has 48 divisors (see below), whose sum is σ = 30481920. Its totient is φ = 3861760.

The previous prime is 12313283. The next prime is 12313289. The reversal of 12313284 is 48231321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13837 + ... + 14699.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 212313284 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 12313284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15240960).

12313284 is an abundant number, since it is smaller than the sum of its proper divisors (18168636).

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

12313284 is a wasteful number, since it uses less digits than its factorization.

12313284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 938 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 12313284 is about 3509.0289255006. The cubic root of 12313284 is about 230.9180946857.

The spelling of 12313284 in words is "twelve million, three hundred thirteen thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 29 41 58 82 87 116 123 164 174 246 348 492 863 1189 1726 2378 2589 3452 3567 4756 5178 7134 10356 14268 25027 35383 50054 70766 75081 100108 106149 141532 150162 212298 300324 424596 1026107 2052214 3078321 4104428 6156642 12313284