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28579079 is a prime number
BaseRepresentation
bin110110100000…
…1010100000111
31222202222010102
41231001110013
524304012304
62500314315
7464626634
oct155012407
958688112
1028579079
111514a981
1296a299b
135bc82c9
143b1d18b
152797d1e
hex1b41507

28579079 has 2 divisors, whose sum is σ = 28579080. Its totient is φ = 28579078.

The previous prime is 28579063. The next prime is 28579093. The reversal of 28579079 is 97097582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28579079 - 24 = 28579063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28579039) 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, 14289539 + 14289540.

It is an arithmetic number, because the mean of its divisors is an integer number (14289540).

Almost surely, 228579079 is an apocalyptic number.

28579079 is a deficient number, since it is larger than the sum of its proper divisors (1).

28579079 is an equidigital number, since it uses as much as digits as its factorization.

28579079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 28579079 is about 5345.9404224140. The cubic root of 28579079 is about 305.7379925071.

The spelling of 28579079 in words is "twenty-eight million, five hundred seventy-nine thousand, seventy-nine".