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86216995 = 5235997131
BaseRepresentation
bin1010010001110…
…01000100100011
320000020021111001
411020321010203
5134032420440
612315532431
72064555334
oct510710443
9200207431
1086216995
1144738117
1224a5a117
1314b29097
14b64428b
157880b9a
hex5239123

86216995 has 32 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 63697920.

The previous prime is 86216981. The next prime is 86217023. The reversal of 86216995 is 59961268.

It is not a de Polignac number, because 86216995 - 213 = 86208803 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658080 + ... + 658210.

It is an arithmetic number, because the mean of its divisors is an integer number (3492720).

Almost surely, 286216995 is an apocalyptic number.

86216995 is a deficient number, since it is larger than the sum of its proper divisors (25550045).

86216995 is a wasteful number, since it uses less digits than its factorization.

86216995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its digits is 233280, while the sum is 46.

The square root of 86216995 is about 9285.3107110102. The cubic root of 86216995 is about 441.7714313399.

The spelling of 86216995 in words is "eighty-six million, two hundred sixteen thousand, nine hundred ninety-five".

Divisors: 1 5 23 59 97 115 131 295 485 655 1357 2231 3013 5723 6785 7729 11155 12707 15065 28615 38645 63535 131629 177767 292261 658145 749713 888835 1461305 3748565 17243399 86216995