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12005233 = 113131811
BaseRepresentation
bin101101110010…
…111101110001
3211120221002021
4231302331301
511033131413
61105151441
7204020452
oct55627561
924527067
1012005233
11685a789
12402b581
1326444b6
141847129
1510c218d
hexb72f71

12005233 has 8 divisors (see below), whose sum is σ = 12218976. Its totient is φ = 11793600.

The previous prime is 12005221. The next prime is 12005237. The reversal of 12005233 is 33250021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12005233 - 29 = 12004721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12005237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14398 + ... + 15208.

It is an arithmetic number, because the mean of its divisors is an integer number (1527372).

Almost surely, 212005233 is an apocalyptic number.

It is an amenable number.

12005233 is a deficient number, since it is larger than the sum of its proper divisors (213743).

12005233 is a wasteful number, since it uses less digits than its factorization.

12005233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12005233 is about 3464.8568512999. The cubic root of 12005233 is about 228.9761230611.

Adding to 12005233 its reverse (33250021), we get a palindrome (45255254).

The spelling of 12005233 in words is "twelve million, five thousand, two hundred thirty-three".

Divisors: 1 113 131 811 14803 91643 106241 12005233