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86751055 = 5192339703
BaseRepresentation
bin1010010101110…
…11011101001111
320001020102002001
411022323131033
5134202013210
612335213131
72102241346
oct512733517
9201212061
1086751055
1144a72396
12250771a7
1314c851b1
14b742b5d
15793903a
hex52bb74f

86751055 has 16 divisors (see below), whose sum is σ = 114347520. Its totient is φ = 62887968.

The previous prime is 86751047. The next prime is 86751109. The reversal of 86751055 is 55015768.

It is a cyclic number.

It is not a de Polignac number, because 86751055 - 23 = 86751047 is a prime.

It is a super-2 number, since 2×867510552 = 15051491087226050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17667 + ... + 22036.

It is an arithmetic number, because the mean of its divisors is an integer number (7146720).

Almost surely, 286751055 is an apocalyptic number.

86751055 is a deficient number, since it is larger than the sum of its proper divisors (27596465).

86751055 is a wasteful number, since it uses less digits than its factorization.

86751055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39750.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 86751055 is about 9314.0246402938. The cubic root of 86751055 is about 442.6817196544.

It can be divided in two parts, 8675 and 1055, that added together give a triangular number (9730 = T139).

The spelling of 86751055 in words is "eighty-six million, seven hundred fifty-one thousand, fifty-five".

Divisors: 1 5 19 23 95 115 437 2185 39703 198515 754357 913169 3771785 4565845 17350211 86751055