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12980431 is a prime number
BaseRepresentation
bin110001100001…
…000011001111
3220102110210201
4301201003033
511310333211
61142114331
7215221552
oct61410317
926373721
1012980431
117366432
12441b9a7
1328c6339
141a1c699
1512160c1
hexc610cf

12980431 has 2 divisors, whose sum is σ = 12980432. Its totient is φ = 12980430.

The previous prime is 12980399. The next prime is 12980447. The reversal of 12980431 is 13408921.

It is a happy number.

12980431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12980431 - 25 = 12980399 is a prime.

It is a super-3 number, since 3×129804313 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12980431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12981431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6490215 + 6490216.

It is an arithmetic number, because the mean of its divisors is an integer number (6490216).

Almost surely, 212980431 is an apocalyptic number.

12980431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12980431 is an equidigital number, since it uses as much as digits as its factorization.

12980431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 12980431 is about 3602.8365214092. The cubic root of 12980431 is about 235.0154267827.

The spelling of 12980431 in words is "twelve million, nine hundred eighty thousand, four hundred thirty-one".