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12033340 = 2251183659
BaseRepresentation
bin101101111001…
…110100111100
3211122100122021
4231321310330
511040031330
61105525524
7204165424
oct55716474
924570567
1012033340
116879910
1240438a4
132654227
141853484
1510ca67a
hexb79d3c

12033340 has 48 divisors (see below), whose sum is σ = 27941760. Its totient is φ = 4316480.

The previous prime is 12033323. The next prime is 12033349. The reversal of 12033340 is 4333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033349) 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, 17931 + ... + 18589.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 212033340 is an apocalyptic number.

12033340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12033340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13970880).

12033340 is an abundant number, since it is smaller than the sum of its proper divisors (15908420).

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

12033340 is a wasteful number, since it uses less digits than its factorization.

12033340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 12033340 is about 3468.9104917827. The cubic root of 12033340 is about 229.1546789689.

Adding to 12033340 its reverse (4333021), we get a palindrome (16366361).

The spelling of 12033340 in words is "twelve million, thirty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 83 110 166 220 332 415 659 830 913 1318 1660 1826 2636 3295 3652 4565 6590 7249 9130 13180 14498 18260 28996 36245 54697 72490 109394 144980 218788 273485 546970 601667 1093940 1203334 2406668 3008335 6016670 12033340