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5387887 = 19283573
BaseRepresentation
bin10100100011011001101111
3101010201210101
4110203121233
52334403022
6311251531
763540061
oct24433157
911121711
105387887
11304aaaa
121979ba7
1311684cb
14a03731
15716627
hex52366f

5387887 has 4 divisors (see below), whose sum is σ = 5671480. Its totient is φ = 5104296.

The previous prime is 5387873. The next prime is 5387891. The reversal of 5387887 is 7887835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7887835 = 51577567.

It is a cyclic number.

It is not a de Polignac number, because 5387887 - 211 = 5385839 is a prime.

It is a Duffinian number.

5387887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5387807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141768 + ... + 141805.

It is an arithmetic number, because the mean of its divisors is an integer number (1417870).

Almost surely, 25387887 is an apocalyptic number.

5387887 is a deficient number, since it is larger than the sum of its proper divisors (283593).

5387887 is a wasteful number, since it uses less digits than its factorization.

5387887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283592.

The product of its digits is 376320, while the sum is 46.

The square root of 5387887 is about 2321.1822418759. The cubic root of 5387887 is about 175.3097859854.

The spelling of 5387887 in words is "five million, three hundred eighty-seven thousand, eight hundred eighty-seven".

Divisors: 1 19 283573 5387887