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12260731 = 72594241
BaseRepresentation
bin101110110001…
…010101111011
3212001220120011
4232301111323
511114320411
61114442351
7206133400
oct56612573
925056504
1012260731
116a1473a
1241333b7
132703892
1418b22a7
151122c21
hexbb157b

12260731 has 12 divisors (see below), whose sum is σ = 14507640. Its totient is φ = 10328640.

The previous prime is 12260713. The next prime is 12260741. The reversal of 12260731 is 13706221.

12260731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12260731 - 27 = 12260603 is a prime.

It is a super-2 number, since 2×122607312 = 300651049308722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12260701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (1208970).

Almost surely, 212260731 is an apocalyptic number.

12260731 is a deficient number, since it is larger than the sum of its proper divisors (2246909).

12260731 is an equidigital number, since it uses as much as digits as its factorization.

12260731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12260731 is about 3501.5326644200. The cubic root of 12260731 is about 230.5891073271.

Adding to 12260731 its reverse (13706221), we get a palindrome (25966952).

The spelling of 12260731 in words is "twelve million, two hundred sixty thousand, seven hundred thirty-one".

Divisors: 1 7 49 59 413 2891 4241 29687 207809 250219 1751533 12260731