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87009584956 = 22710330169759
BaseRepresentation
bin101000100001000101…
…1001110011100111100
322022120211212212212121
41101002023032130330
52411143423204311
6103545513212324
76200115161230
oct1210213163474
9268524785777
1087009584956
113399a707aa8
1214a434010a4
138288415718
1442d5aac5c0
1523e3a7cb71
hex14422ce73c

87009584956 has 24 divisors (see below), whose sum is σ = 175708682240. Its totient is φ = 36927783792.

The previous prime is 87009584947. The next prime is 87009584971. The reversal of 87009584956 is 65948590078.

It is a junction number, because it is equal to n+sod(n) for n = 87009584894 and 87009584903.

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 7 ways as a sum of consecutive naturals, for example, 15081996 + ... + 15087763.

Almost surely, 287009584956 is an apocalyptic number.

It is an amenable number.

87009584956 is an abundant number, since it is smaller than the sum of its proper divisors (88699097284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87009584956 is a wasteful number, since it uses less digits than its factorization.

87009584956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30169873 (or 30169871 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 87009584956 in words is "eighty-seven billion, nine million, five hundred eighty-four thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 103 206 412 721 1442 2884 30169759 60339518 120679036 211188313 422376626 844753252 3107485177 6214970354 12429940708 21752396239 43504792478 87009584956