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86066155 = 5717791831
BaseRepresentation
bin1010010000101…
…00001111101011
312222221121120101
411020110033223
5134013104110
612312410231
72063356510
oct510241753
9188847511
1086066155
114464485a
12249a6977
1314aa5526
14b605307
15785113a
hex52143eb

86066155 has 32 divisors (see below), whose sum is σ = 126627840. Its totient is φ = 54812160.

The previous prime is 86066131. The next prime is 86066173. The reversal of 86066155 is 55166068.

It is not a de Polignac number, because 86066155 - 213 = 86057963 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46090 + ... + 47920.

It is an arithmetic number, because the mean of its divisors is an integer number (3957120).

Almost surely, 286066155 is an apocalyptic number.

86066155 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86066155 is a deficient number, since it is larger than the sum of its proper divisors (40561685).

86066155 is a wasteful number, since it uses less digits than its factorization.

86066155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 86066155 is about 9277.1846483726. The cubic root of 86066155 is about 441.5136488237.

The spelling of 86066155 in words is "eighty-six million, sixty-six thousand, one hundred fifty-five".

Divisors: 1 5 7 17 35 79 85 119 395 553 595 1343 1831 2765 6715 9155 9401 12817 31127 47005 64085 144649 155635 217889 723245 1012543 1089445 2459033 5062715 12295165 17213231 86066155