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86216255 = 5791671307
BaseRepresentation
bin1010010001110…
…00111000111111
320000020020110122
411020320320333
5134032410010
612315525155
72064553226
oct510707077
9200206418
1086216255
1144737604
1224a597bb
1314b28948
14b643cbd
157880855
hex5238e3f

86216255 has 16 divisors (see below), whose sum is σ = 105477120. Its totient is φ = 67640352.

The previous prime is 86216237. The next prime is 86216257. The reversal of 86216255 is 55261268.

It is a cyclic number.

It is not a de Polignac number, because 86216255 - 26 = 86216191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86216257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65312 + ... + 66618.

It is an arithmetic number, because the mean of its divisors is an integer number (6592320).

Almost surely, 286216255 is an apocalyptic number.

86216255 is a deficient number, since it is larger than the sum of its proper divisors (19260865).

86216255 is a wasteful number, since it uses less digits than its factorization.

86216255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its digits is 28800, while the sum is 35.

The square root of 86216255 is about 9285.2708630389. The cubic root of 86216255 is about 441.7701674291.

The spelling of 86216255 in words is "eighty-six million, two hundred sixteen thousand, two hundred fifty-five".

Divisors: 1 5 79 167 395 835 1307 6535 13193 65965 103253 218269 516265 1091345 17243251 86216255