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12760031 is a prime number
BaseRepresentation
bin110000101011…
…001111011111
3220000021110202
4300223033133
511231310111
61133254115
7213313154
oct60531737
926007422
1012760031
117225889
12433433b
132849c1b
1419a222b
1511c0b3b
hexc2b3df

12760031 has 2 divisors, whose sum is σ = 12760032. Its totient is φ = 12760030.

The previous prime is 12760021. The next prime is 12760051. The reversal of 12760031 is 13006721.

It is a happy number.

It is an a-pointer prime, because the next prime (12760051) can be obtained adding 12760031 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12760031 - 222 = 8565727 is a prime.

It is a super-2 number, since 2×127600312 = 325636782241922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12759985 and 12760012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12760021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380015 + 6380016.

It is an arithmetic number, because the mean of its divisors is an integer number (6380016).

Almost surely, 212760031 is an apocalyptic number.

12760031 is the 1598-th centered decagonal number.

12760031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12760031 is an equidigital number, since it uses as much as digits as its factorization.

12760031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 12760031 is about 3572.1185590627. The cubic root of 12760031 is about 233.6776858867.

Adding to 12760031 its reverse (13006721), we get a palindrome (25766752).

The spelling of 12760031 in words is "twelve million, seven hundred sixty thousand, thirty-one".