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12055249 = 31388879
BaseRepresentation
bin101101111111…
…001011010001
3211200110200201
4231333023101
511041231444
61110215201
7204316333
oct55771321
924613621
1012055249
116894318
124054501
1326611ab
14185b453
1510d1dd4
hexb7f2d1

12055249 has 4 divisors (see below), whose sum is σ = 12444160. Its totient is φ = 11666340.

The previous prime is 12055237. The next prime is 12055273. The reversal of 12055249 is 94255021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12055249 - 215 = 12022481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12055349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194409 + ... + 194470.

It is an arithmetic number, because the mean of its divisors is an integer number (3111040).

Almost surely, 212055249 is an apocalyptic number.

It is an amenable number.

12055249 is a deficient number, since it is larger than the sum of its proper divisors (388911).

12055249 is an equidigital number, since it uses as much as digits as its factorization.

12055249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388910.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12055249 is about 3472.0669636400. The cubic root of 12055249 is about 229.2936679773.

The spelling of 12055249 in words is "twelve million, fifty-five thousand, two hundred forty-nine".

Divisors: 1 31 388879 12055249