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12430931 is a prime number
BaseRepresentation
bin101111011010…
…111001010011
3212101120000212
4233122321103
511140242211
61122234335
7210442532
oct57327123
925346025
1012430931
1170205a7
1241b59ab
1327631a6
141918319
15115838b
hexbdae53

12430931 has 2 divisors, whose sum is σ = 12430932. Its totient is φ = 12430930.

The previous prime is 12430903. The next prime is 12430963. The reversal of 12430931 is 13903421.

12430931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12430931 - 214 = 12414547 is a prime.

It is a super-2 number, since 2×124309312 = 309056091053522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12430897 and 12430906.

It is not a weakly prime, because it can be changed into another prime (12430331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215465 + 6215466.

It is an arithmetic number, because the mean of its divisors is an integer number (6215466).

Almost surely, 212430931 is an apocalyptic number.

12430931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430931 is an equidigital number, since it uses as much as digits as its factorization.

12430931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12430931 is about 3525.7525437841. The cubic root of 12430931 is about 231.6511987556.

The spelling of 12430931 in words is "twelve million, four hundred thirty thousand, nine hundred thirty-one".