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12233788 = 2276612
BaseRepresentation
bin101110101010…
…110000111100
3212000112121021
4232222300330
511112440123
61114113524
7205662010
oct56526074
925015537
1012233788
1169a6476
12411b8a4
1326c4538
1418a6540
151119c5d
hexbaac3c

12233788 has 18 divisors (see below), whose sum is σ = 24504648. Its totient is φ = 5235120.

The previous prime is 12233779. The next prime is 12233789. The reversal of 12233788 is 88733221.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233789) 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 5 ways as a sum of consecutive naturals, for example, 18178 + ... + 18838.

Almost surely, 212233788 is an apocalyptic number.

It is an amenable number.

12233788 is an abundant number, since it is smaller than the sum of its proper divisors (12270860).

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

12233788 is an frugal number, since it uses more digits than its factorization.

12233788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 670 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 12233788 is about 3497.6832332274. The cubic root of 12233788 is about 230.4200766568.

Multiplying 12233788 by its product of digits (16128), we get a square (197306532864 = 4441922).

The spelling of 12233788 in words is "twelve million, two hundred thirty-three thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 661 1322 2644 4627 9254 18508 436921 873842 1747684 3058447 6116894 12233788