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87286737 = 3371136959
BaseRepresentation
bin1010011001111…
…10001111010001
320002020121220010
411030332033101
5134321133422
612354505133
72106632166
oct514761721
9202217803
1087286737
11452a88aa
12252951a9
1315111c75
14b84206d
1579e2b0c
hex533e3d1

87286737 has 16 divisors (see below), whose sum is σ = 120602880. Its totient is φ = 56109312.

The previous prime is 87286699. The next prime is 87286739. The reversal of 87286737 is 73768278.

It is not a de Polignac number, because 87286737 - 28 = 87286481 is a prime.

It is a super-2 number, since 2×872867372 = 15237948912214338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87286739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9064 + ... + 16022.

It is an arithmetic number, because the mean of its divisors is an integer number (7537680).

Almost surely, 287286737 is an apocalyptic number.

It is an amenable number.

87286737 is a deficient number, since it is larger than the sum of its proper divisors (33316143).

87286737 is a wasteful number, since it uses less digits than its factorization.

87286737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112.

The product of its digits is 790272, while the sum is 48.

The square root of 87286737 is about 9342.7371257036. The cubic root of 87286737 is about 443.5910273109.

The spelling of 87286737 in words is "eighty-seven million, two hundred eighty-six thousand, seven hundred thirty-seven".

Divisors: 1 3 37 111 113 339 4181 6959 12543 20877 257483 772449 786367 2359101 29095579 87286737