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87081063 = 3434331559
BaseRepresentation
bin1010011000011…
…00000001100111
320001212011202120
411030030001213
5134243043223
612350241023
72105114436
oct514140147
9201764676
1087081063
1145178323
12251b6173
131506c474
14b7cb11d
1579a1be3
hex530c067

87081063 has 16 divisors (see below), whose sum is σ = 119159040. Its totient is φ = 56536704.

The previous prime is 87081061. The next prime is 87081073. The reversal of 87081063 is 36018078.

It is not a de Polignac number, because 87081063 - 21 = 87081061 is a prime.

It is a super-2 number, since 2×870810632 = 15166223066419938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87081061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55078 + ... + 56636.

It is an arithmetic number, because the mean of its divisors is an integer number (7447440).

Almost surely, 287081063 is an apocalyptic number.

87081063 is a deficient number, since it is larger than the sum of its proper divisors (32077977).

87081063 is a wasteful number, since it uses less digits than its factorization.

87081063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 87081063 is about 9331.7234742570. The cubic root of 87081063 is about 443.2423416753.

The spelling of 87081063 in words is "eighty-seven million, eighty-one thousand, sixty-three".

Divisors: 1 3 43 129 433 1299 1559 4677 18619 55857 67037 201111 675047 2025141 29027021 87081063