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87314505 = 3529200723
BaseRepresentation
bin1010011010001…
…01000001001001
320002022000222120
411031011001021
5134323031010
612355241453
72110106145
oct515050111
9202260876
1087314505
1145317753
12252a9289
13151217b5
14b84c225
1579eae70
hex5345049

87314505 has 16 divisors (see below), whose sum is σ = 144521280. Its totient is φ = 44961728.

The previous prime is 87314503. The next prime is 87314527. The reversal of 87314505 is 50541378.

It is a cyclic number.

It is not a de Polignac number, because 87314505 - 21 = 87314503 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87314503) 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, 99927 + ... + 100796.

It is an arithmetic number, because the mean of its divisors is an integer number (9032580).

Almost surely, 287314505 is an apocalyptic number.

It is an amenable number.

87314505 is a deficient number, since it is larger than the sum of its proper divisors (57206775).

87314505 is a wasteful number, since it uses less digits than its factorization.

87314505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200760.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 87314505 is about 9344.2230816692. The cubic root of 87314505 is about 443.6380612976.

The spelling of 87314505 in words is "eighty-seven million, three hundred fourteen thousand, five hundred five".

Divisors: 1 3 5 15 29 87 145 435 200723 602169 1003615 3010845 5820967 17462901 29104835 87314505