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87287695 = 5114733767
BaseRepresentation
bin1010011001111…
…10011110001111
320002020200012121
411030332132033
5134321201240
612354513411
72106635035
oct514763617
9202220177
1087287695
11452a95a0
1225295867
1315112531
14b842555
1579e304a
hex533e78f

87287695 has 16 divisors (see below), whose sum is σ = 116702208. Its totient is φ = 62129440.

The previous prime is 87287693. The next prime is 87287713. The reversal of 87287695 is 59678278.

It is not a de Polignac number, because 87287695 - 21 = 87287693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87287693) by changing a digit.

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, 14299 + ... + 19468.

It is an arithmetic number, because the mean of its divisors is an integer number (7293888).

Almost surely, 287287695 is an apocalyptic number.

87287695 is a deficient number, since it is larger than the sum of its proper divisors (29414513).

87287695 is a wasteful number, since it uses less digits than its factorization.

87287695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33830.

The product of its digits is 1693440, while the sum is 52.

The square root of 87287695 is about 9342.7883953347. The cubic root of 87287695 is about 443.5926501563.

It can be divided in two parts, 87 and 287695, that added together give a palindrome (287782).

The spelling of 87287695 in words is "eighty-seven million, two hundred eighty-seven thousand, six hundred ninety-five".

Divisors: 1 5 11 47 55 235 517 2585 33767 168835 371437 1587049 1857185 7935245 17457539 87287695