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87530302 = 2193316959
BaseRepresentation
bin1010011011110…
…01101100111110
320002201000000001
411031321230332
5134401432202
612404024514
72111665246
oct515715476
9202630001
1087530302
11454548a2
122539213a
1315198aa2
14b8a6b26
157a3ed87
hex5379b3e

87530302 has 16 divisors (see below), whose sum is σ = 138643200. Its totient is φ = 41330520.

The previous prime is 87530293. The next prime is 87530347. The reversal of 87530302 is 20303578.

It is a super-2 number, since 2×875303022 = 15323107536422408, which contains 22 as substring.

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, 9099 + ... + 16057.

It is an arithmetic number, because the mean of its divisors is an integer number (8665200).

Almost surely, 287530302 is an apocalyptic number.

87530302 is a deficient number, since it is larger than the sum of its proper divisors (51112898).

87530302 is a wasteful number, since it uses less digits than its factorization.

87530302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 87530302 is about 9355.7630367597. The cubic root of 87530302 is about 444.0032430843.

The spelling of 87530302 in words is "eighty-seven million, five hundred thirty thousand, three hundred two".

Divisors: 1 2 19 38 331 662 6289 6959 12578 13918 132221 264442 2303429 4606858 43765151 87530302