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12430091 is a prime number
BaseRepresentation
bin101111011010…
…101100001011
3212101111212202
4233122230023
511140230331
61122230415
7210440222
oct57325413
925344782
1012430091
11701aa03
1241b540b
1327629ab
141917cb9
151157ecb
hexbdab0b

12430091 has 2 divisors, whose sum is σ = 12430092. Its totient is φ = 12430090.

The previous prime is 12430087. The next prime is 12430127. The reversal of 12430091 is 19003421.

It is a weak prime.

It is an emirp because it is prime and its reverse (19003421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12430091 - 22 = 12430087 is a prime.

It is not a weakly prime, because it can be changed into another prime (12430001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215045 + 6215046.

It is an arithmetic number, because the mean of its divisors is an integer number (6215046).

Almost surely, 212430091 is an apocalyptic number.

12430091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430091 is an equidigital number, since it uses as much as digits as its factorization.

12430091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12430091 is about 3525.6334182669. The cubic root of 12430091 is about 231.6459808201.

The spelling of 12430091 in words is "twelve million, four hundred thirty thousand, ninety-one".