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85056255 = 32519531877
BaseRepresentation
bin1010001000111…
…01101011111111
312221001022020200
411010131223333
5133233300010
612235014543
72051652264
oct504355377
9187038220
1085056255
1144015029
122459a453
131481095b
14b42126b
157701cc0
hex511daff

85056255 has 48 divisors (see below), whose sum is σ = 158202720. Its totient is φ = 42142464.

The previous prime is 85056247. The next prime is 85056259. The reversal of 85056255 is 55265058.

It is not a de Polignac number, because 85056255 - 23 = 85056247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85056259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44377 + ... + 46253.

It is an arithmetic number, because the mean of its divisors is an integer number (3295890).

Almost surely, 285056255 is an apocalyptic number.

85056255 is a deficient number, since it is larger than the sum of its proper divisors (73146465).

85056255 is a wasteful number, since it uses less digits than its factorization.

85056255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 85056255 is about 9222.5948084040. The cubic root of 85056255 is about 439.7799433363.

The spelling of 85056255 in words is "eighty-five million, fifty-six thousand, two hundred fifty-five".

Divisors: 1 3 5 9 15 19 45 53 57 95 159 171 265 285 477 795 855 1007 1877 2385 3021 5035 5631 9063 9385 15105 16893 28155 35663 45315 84465 99481 106989 178315 298443 320967 497405 534945 895329 1492215 1604835 1890139 4476645 5670417 9450695 17011251 28352085 85056255