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12133338 = 237319319
BaseRepresentation
bin101110010010…
…001111011010
3211211102210220
4232102033122
511101231323
61112020510
7205063110
oct56221732
924742726
1012133338
116937a58
124091736
13268a8b9
14187bab0
1510ea0e3
hexb923da

12133338 has 32 divisors (see below), whose sum is σ = 28631040. Its totient is φ = 3354480.

The previous prime is 12133333. The next prime is 12133367. The reversal of 12133338 is 83333121.

It is not an unprimeable number, because it can be changed into a prime (12133333) 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, 3358 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (894720).

Almost surely, 212133338 is an apocalyptic number.

12133338 is an abundant number, since it is smaller than the sum of its proper divisors (16497702).

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

12133338 is a wasteful number, since it uses less digits than its factorization.

12133338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362.

The product of its digits is 1296, while the sum is 24.

The square root of 12133338 is about 3483.2941305609. The cubic root of 12133338 is about 229.7876931845.

Adding to 12133338 its reverse (83333121), we get a palindrome (95466459).

The spelling of 12133338 in words is "twelve million, one hundred thirty-three thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 1302 9319 18638 27957 55914 65233 130466 195699 288889 391398 577778 866667 1733334 2022223 4044446 6066669 12133338