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12392755 = 510922739
BaseRepresentation
bin101111010001…
…100100110011
3212022121122221
4233101210303
511133032010
61121341511
7210223324
oct57214463
925277587
1012392755
116aa4951
124197897
13274b9bb
14190844b
15114bdda
hexbd1933

12392755 has 8 divisors (see below), whose sum is σ = 15008400. Its totient is φ = 9822816.

The previous prime is 12392749. The next prime is 12392759. The reversal of 12392755 is 55729321.

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 12392755 - 23 = 12392747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12392755.

It is not an unprimeable number, because it can be changed into a prime (12392759) 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 7 ways as a sum of consecutive naturals, for example, 10825 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (1876050).

Almost surely, 212392755 is an apocalyptic number.

12392755 is a deficient number, since it is larger than the sum of its proper divisors (2615645).

12392755 is a wasteful number, since it uses less digits than its factorization.

12392755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22853.

The product of its digits is 18900, while the sum is 34.

The square root of 12392755 is about 3520.3345011518. The cubic root of 12392755 is about 231.4138181819.

The spelling of 12392755 in words is "twelve million, three hundred ninety-two thousand, seven hundred fifty-five".

Divisors: 1 5 109 545 22739 113695 2478551 12392755