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12248055 = 325272179
BaseRepresentation
bin101110101110…
…001111110111
3212001021011200
4232232033313
511113414210
61114303543
7206051421
oct56561767
925037150
1012248055
116a06166
124127bb3
1326cab91
1418ab811
15111e0c0
hexbae3f7

12248055 has 12 divisors (see below), whose sum is σ = 21230040. Its totient is φ = 6532272.

The previous prime is 12248051. The next prime is 12248099. The reversal of 12248055 is 55084221.

It is a happy number.

It is not a de Polignac number, because 12248055 - 22 = 12248051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12248051) 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 11 ways as a sum of consecutive naturals, for example, 136045 + ... + 136134.

It is an arithmetic number, because the mean of its divisors is an integer number (1769170).

Almost surely, 212248055 is an apocalyptic number.

12248055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12248055 is a deficient number, since it is larger than the sum of its proper divisors (8981985).

12248055 is a wasteful number, since it uses less digits than its factorization.

12248055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272190 (or 272187 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12248055 is about 3499.7221318270. The cubic root of 12248055 is about 230.5096135509.

The spelling of 12248055 in words is "twelve million, two hundred forty-eight thousand, fifty-five".

Divisors: 1 3 5 9 15 45 272179 816537 1360895 2449611 4082685 12248055