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12340788 = 2232361733
BaseRepresentation
bin101111000100…
…111000110100
3212012222101020
4233010320310
511124401123
61120301140
7206615655
oct57047064
925188336
1012340788
116a698a9
1241717b0
132731155
1418d352c
15113b7e3
hexbc4e34

12340788 has 48 divisors (see below), whose sum is σ = 30581376. Its totient is φ = 3864960.

The previous prime is 12340787. The next prime is 12340789. The reversal of 12340788 is 88704321.

12340788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12340787) and next prime (12340789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340787) 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, 16470 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (637112).

Almost surely, 212340788 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 12340788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15290688).

12340788 is an abundant number, since it is smaller than the sum of its proper divisors (18240588).

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

12340788 is a wasteful number, since it uses less digits than its factorization.

12340788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 12340788 is about 3512.9457724252. The cubic root of 12340788 is about 231.0898996051.

The spelling of 12340788 in words is "twelve million, three hundred forty thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 23 46 61 69 92 122 138 183 244 276 366 732 733 1403 1466 2199 2806 2932 4209 4398 5612 8418 8796 16836 16859 33718 44713 50577 67436 89426 101154 134139 178852 202308 268278 536556 1028399 2056798 3085197 4113596 6170394 12340788