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12233240 = 2352313297
BaseRepresentation
bin101110101010…
…101000011000
3212000111211222
4232222220120
511112430430
61114111212
7205660265
oct56525030
925014758
1012233240
1169a6018
12411b508
1326c4206
1418a626c
1511199e5
hexbaaa18

12233240 has 32 divisors (see below), whose sum is σ = 28723680. Its totient is φ = 4680192.

The previous prime is 12233239. The next prime is 12233261. The reversal of 12233240 is 4233221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729 + ... + 7568.

It is an arithmetic number, because the mean of its divisors is an integer number (897615).

Almost surely, 212233240 is an apocalyptic number.

12233240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12233240 is an abundant number, since it is smaller than the sum of its proper divisors (16490440).

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

12233240 is a wasteful number, since it uses less digits than its factorization.

12233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331 (or 13327 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12233240 is about 3497.6048947816. The cubic root of 12233240 is about 230.4166361284.

Adding to 12233240 its reverse (4233221), we get a palindrome (16466461).

The spelling of 12233240 in words is "twelve million, two hundred thirty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 13297 26594 53188 66485 106376 132970 265940 305831 531880 611662 1223324 1529155 2446648 3058310 6116620 12233240