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86770272815 = 5179711639049
BaseRepresentation
bin101000011001111101…
…0010100101000101111
322021222011120120022222
41100303322110220233
52410201142212230
6103510044025555
76161151102212
oct1206372245057
9267864516288
1086770272815
1133887614276
12149972322bb
13824a9759c5
1442b1db5779
1523cca5a6e5
hex1433e94a2f

86770272815 has 32 divisors (see below), whose sum is σ = 111493972800. Its totient is φ = 64596639744.

The previous prime is 86770272791. The next prime is 86770272821. The reversal of 86770272815 is 51827207768.

It is a cyclic number.

It is not a de Polignac number, because 86770272815 - 212 = 86770268719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9584411 + ... + 9593459.

It is an arithmetic number, because the mean of its divisors is an integer number (3484186650).

Almost surely, 286770272815 is an apocalyptic number.

86770272815 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86770272815 is a deficient number, since it is larger than the sum of its proper divisors (24723699985).

86770272815 is a wasteful number, since it uses less digits than its factorization.

86770272815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The spelling of 86770272815 in words is "eighty-six billion, seven hundred seventy million, two hundred seventy-two thousand, eight hundred fifteen".

Divisors: 1 5 17 85 97 485 1163 1649 5815 8245 9049 19771 45245 98855 112811 153833 564055 769165 877753 1917787 4388765 9588935 10523987 14921801 52619935 74609005 178907779 894538895 1020826739 5104133695 17354054563 86770272815