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5287131 = 32587459
BaseRepresentation
bin10100001010110011011011
3100221121120200
4110022303123
52323142011
6305153243
762640243
oct24126333
910847520
105287131
112a91333
12192b823
1311316a5
149b8b23
156e6856
hex50acdb

5287131 has 6 divisors (see below), whose sum is σ = 7636980. Its totient is φ = 3524748.

The previous prime is 5287097. The next prime is 5287141. The reversal of 5287131 is 1317825.

5287131 is a `hidden beast` number, since 528 + 7 + 131 = 666.

5287131 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5287131 - 26 = 5287067 is a prime.

It is a super-2 number, since 2×52871312 = 55907508422322, which contains 22 as substring.

5287131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5287095 and 5287104.

It is not an unprimeable number, because it can be changed into a prime (5287141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293721 + ... + 293738.

It is an arithmetic number, because the mean of its divisors is an integer number (1272830).

Almost surely, 25287131 is an apocalyptic number.

5287131 is a deficient number, since it is larger than the sum of its proper divisors (2349849).

5287131 is a wasteful number, since it uses less digits than its factorization.

5287131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587465 (or 587462 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 5287131 is about 2299.3762197605. The cubic root of 5287131 is about 174.2101108273.

The spelling of 5287131 in words is "five million, two hundred eighty-seven thousand, one hundred thirty-one".

Divisors: 1 3 9 587459 1762377 5287131