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28135356259 is a prime number
BaseRepresentation
bin11010001100111111…
…110111011101100011
32200121210122012000211
4122030333313131203
5430110122400014
620531502154551
72014135403503
oct321477673543
980553565024
1028135356259
1110a2874764a
125552582a57
132864c904ca
14150c945a03
15aea0a1cc4
hex68cff7763

28135356259 has 2 divisors, whose sum is σ = 28135356260. Its totient is φ = 28135356258.

The previous prime is 28135356209. The next prime is 28135356343. The reversal of 28135356259 is 95265353182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28135356259 - 229 = 27598485347 is a prime.

It is not a weakly prime, because it can be changed into another prime (28135356209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14067678129 + 14067678130.

It is an arithmetic number, because the mean of its divisors is an integer number (14067678130).

Almost surely, 228135356259 is an apocalyptic number.

28135356259 is a deficient number, since it is larger than the sum of its proper divisors (1).

28135356259 is an equidigital number, since it uses as much as digits as its factorization.

28135356259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 49.

The spelling of 28135356259 in words is "twenty-eight billion, one hundred thirty-five million, three hundred fifty-six thousand, two hundred fifty-nine".