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12260291 is a prime number
BaseRepresentation
bin101110110001…
…001111000011
3212001212221212
4232301033003
511114312131
61114440335
7206132201
oct56611703
925055855
1012260291
116a1437a
1241330ab
132703614
1418b2071
151122a2b
hexbb13c3

12260291 has 2 divisors, whose sum is σ = 12260292. Its totient is φ = 12260290.

The previous prime is 12260257. The next prime is 12260293. The reversal of 12260291 is 19206221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12260291 - 210 = 12259267 is a prime.

Together with 12260293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12260293) 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 as a sum of consecutive naturals, namely, 6130145 + 6130146.

It is an arithmetic number, because the mean of its divisors is an integer number (6130146).

Almost surely, 212260291 is an apocalyptic number.

12260291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12260291 is an equidigital number, since it uses as much as digits as its factorization.

12260291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12260291 is about 3501.4698342268. The cubic root of 12260291 is about 230.5863489157.

The spelling of 12260291 in words is "twelve million, two hundred sixty thousand, two hundred ninety-one".