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13308479 is a prime number
BaseRepresentation
bin110010110001…
…001000111111
3221001010210122
4302301020333
511401332404
61153125155
7221056142
oct62611077
927033718
1013308479
11756a948
1245597bb
1329ac752
141aa6059
15127d3be
hexcb123f

13308479 has 2 divisors, whose sum is σ = 13308480. Its totient is φ = 13308478.

The previous prime is 13308443. The next prime is 13308481. The reversal of 13308479 is 97480331.

13308479 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 13308479 - 28 = 13308223 is a prime.

It is a super-2 number, since 2×133084792 = 354231226586882, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13308481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13308409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6654239 + 6654240.

It is an arithmetic number, because the mean of its divisors is an integer number (6654240).

Almost surely, 213308479 is an apocalyptic number.

13308479 is a deficient number, since it is larger than the sum of its proper divisors (1).

13308479 is an equidigital number, since it uses as much as digits as its factorization.

13308479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 13308479 is about 3648.0788094557. The cubic root of 13308479 is about 236.9787883002.

The spelling of 13308479 in words is "thirteen million, three hundred eight thousand, four hundred seventy-nine".