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12033031 = 113106487
BaseRepresentation
bin101101111001…
…110000000111
3211122100012211
4231321300013
511040024111
61105524251
7204164503
oct55716007
924570184
1012033031
11687965a
124043687
13265404a
141853303
1510ca521
hexb79c07

12033031 has 4 divisors (see below), whose sum is σ = 12139632. Its totient is φ = 11926432.

The previous prime is 12033019. The next prime is 12033037. The reversal of 12033031 is 13033021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13033021 = 109119569.

It is a cyclic number.

It is not a de Polignac number, because 12033031 - 211 = 12030983 is a prime.

It is a super-2 number, since 2×120330312 = 289587670093922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033037) 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 3 ways as a sum of consecutive naturals, for example, 53131 + ... + 53356.

It is an arithmetic number, because the mean of its divisors is an integer number (3034908).

Almost surely, 212033031 is an apocalyptic number.

12033031 is a deficient number, since it is larger than the sum of its proper divisors (106601).

12033031 is a wasteful number, since it uses less digits than its factorization.

12033031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106600.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 12033031 is about 3468.8659530169. The cubic root of 12033031 is about 229.1527174907.

Adding to 12033031 its reverse (13033021), we get a palindrome (25066052).

The spelling of 12033031 in words is "twelve million, thirty-three thousand, thirty-one".

Divisors: 1 113 106487 12033031