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12430489 is a prime number
BaseRepresentation
bin101111011010…
…110010011001
3212101112102111
4233122302121
511140233424
61122232321
7210441331
oct57326231
925345374
1012430489
117020235
1241b56a1
132762c26
1419180c1
151158194
hexbdac99

12430489 has 2 divisors, whose sum is σ = 12430490. Its totient is φ = 12430488.

The previous prime is 12430463. The next prime is 12430501. The reversal of 12430489 is 98403421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 870489 = 3400^2 + 933^2 .

It is an emirp because it is prime and its reverse (98403421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12430489 - 27 = 12430361 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12430489.

It is not a weakly prime, because it can be changed into another prime (12400489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215244 + 6215245.

It is an arithmetic number, because the mean of its divisors is an integer number (6215245).

Almost surely, 212430489 is an apocalyptic number.

It is an amenable number.

12430489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430489 is an equidigital number, since it uses as much as digits as its factorization.

12430489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12430489 is about 3525.6898615732. The cubic root of 12430489 is about 231.6484531569.

The spelling of 12430489 in words is "twelve million, four hundred thirty thousand, four hundred eighty-nine".