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85280263 = 792694013
BaseRepresentation
bin1010001010101…
…00011000000111
312221110200112021
411011110120013
5133312432023
612243504011
72053604335
oct505243007
9187420467
1085280263
1144158362
1224688007
131488b8c3
14b47cb55
15774835d
hex5154607

85280263 has 8 divisors (see below), whose sum is σ = 86702400. Its totient is φ = 83866848.

The previous prime is 85280207. The next prime is 85280323. The reversal of 85280263 is 36208258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85280263 - 29 = 85279751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85280203) 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 in 7 ways as a sum of consecutive naturals, for example, 19245 + ... + 23257.

It is an arithmetic number, because the mean of its divisors is an integer number (10837800).

Almost surely, 285280263 is an apocalyptic number.

85280263 is a deficient number, since it is larger than the sum of its proper divisors (1422137).

85280263 is a wasteful number, since it uses less digits than its factorization.

85280263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85280263 is about 9234.7313442244. The cubic root of 85280263 is about 440.1656796862.

The spelling of 85280263 in words is "eighty-five million, two hundred eighty thousand, two hundred sixty-three".

Divisors: 1 79 269 4013 21251 317027 1079497 85280263