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87406284 = 22373728123
BaseRepresentation
bin1010011010110…
…11011011001100
320002110200212210
411031123123030
5134334000114
612401230420
72110640550
oct515333314
9202420783
1087406284
114537a6a9
1225332410
13151544c4
14b873860
157a18259
hex535b6cc

87406284 has 48 divisors (see below), whose sum is σ = 239391488. Its totient is φ = 24297408.

The previous prime is 87406283. The next prime is 87406303. The reversal of 87406284 is 48260478.

It is not an unprimeable number, because it can be changed into a prime (87406283) 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, 10954 + ... + 17169.

Almost surely, 287406284 is an apocalyptic number.

87406284 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87406284 is an abundant number, since it is smaller than the sum of its proper divisors (151985204).

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

87406284 is a wasteful number, since it uses less digits than its factorization.

87406284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28174 (or 28172 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 87406284 is about 9349.1327940082. The cubic root of 87406284 is about 443.7934474685.

The spelling of 87406284 in words is "eighty-seven million, four hundred six thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 777 1036 1554 3108 28123 56246 84369 112492 168738 196861 337476 393722 590583 787444 1040551 1181166 2081102 2362332 3121653 4162204 6243306 7283857 12486612 14567714 21851571 29135428 43703142 87406284