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12240873 = 321360097
BaseRepresentation
bin101110101100…
…011111101001
3212000220022200
4232230133221
511113201443
61114210413
7206021451
oct56543751
925026280
1012240873
116a00827
124123a09
1326c7828
1418a8d61
15111bdd3
hexbac7e9

12240873 has 6 divisors (see below), whose sum is σ = 17681274. Its totient is φ = 8160576.

The previous prime is 12240869. The next prime is 12240887. The reversal of 12240873 is 37804221.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 870489 = 3372^2 + 933^2 .

It is not a de Polignac number, because 12240873 - 22 = 12240869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680040 + ... + 680057.

It is an arithmetic number, because the mean of its divisors is an integer number (2946879).

Almost surely, 212240873 is an apocalyptic number.

It is an amenable number.

12240873 is a deficient number, since it is larger than the sum of its proper divisors (5440401).

12240873 is a wasteful number, since it uses less digits than its factorization.

12240873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360103 (or 1360100 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12240873 is about 3498.6958999033. The cubic root of 12240873 is about 230.4645494234.

The spelling of 12240873 in words is "twelve million, two hundred forty thousand, eight hundred seventy-three".

Divisors: 1 3 9 1360097 4080291 12240873