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5285181 = 311179421
BaseRepresentation
bin10100001010010100111101
3100221111220110
4110022110331
52323111211
6305140233
762631456
oct24122475
910844813
105285181
112a8a920
12192a679
131130835
149b812d
156e5ea6
hex50a53d

5285181 has 16 divisors (see below), whose sum is σ = 8140608. Its totient is φ = 3014400.

The previous prime is 5285177. The next prime is 5285183. The reversal of 5285181 is 1815825.

It is not a de Polignac number, because 5285181 - 22 = 5285177 is a prime.

It is a super-2 number, since 2×52851812 = 55866276405522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5285183) 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, 4150 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (508788).

Almost surely, 25285181 is an apocalyptic number.

5285181 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5285181 is a deficient number, since it is larger than the sum of its proper divisors (2855427).

5285181 is a wasteful number, since it uses less digits than its factorization.

5285181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452.

The product of its digits is 3200, while the sum is 30.

The square root of 5285181 is about 2298.9521526121. The cubic root of 5285181 is about 174.1886907989.

The spelling of 5285181 in words is "five million, two hundred eighty-five thousand, one hundred eighty-one".

Divisors: 1 3 11 17 33 51 187 561 9421 28263 103631 160157 310893 480471 1761727 5285181