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12045983 = 24734871
BaseRepresentation
bin101101111100…
…111010011111
3211122222222112
4231330322133
511040432413
61110104235
7204250325
oct55747237
924588875
1012045983
116888364
12404b07b
132659c01
141857d15
1510ce2a8
hexb7ce9f

12045983 has 4 divisors (see below), whose sum is σ = 12053328. Its totient is φ = 12038640.

The previous prime is 12045973. The next prime is 12046003. The reversal of 12045983 is 38954021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12045983 - 28 = 12045727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (3013332).

Almost surely, 212045983 is an apocalyptic number.

12045983 is a deficient number, since it is larger than the sum of its proper divisors (7345).

12045983 is an equidigital number, since it uses as much as digits as its factorization.

12045983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7344.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 12045983 is about 3470.7323434687. The cubic root of 12045983 is about 229.2349057537.

The spelling of 12045983 in words is "twelve million, forty-five thousand, nine hundred eighty-three".

Divisors: 1 2473 4871 12045983