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58285881 = 326476209
BaseRepresentation
bin1101111001010…
…1111100111001
311001200020012100
43132111330321
5104410122011
65441134013
71305264453
oct336257471
9131606170
1058285881
112a9a0055
121762a309
13c0c99b4
147a532d3
1551b4d56
hex3795f39

58285881 has 6 divisors (see below), whose sum is σ = 84190730. Its totient is φ = 38857248.

The previous prime is 58285847. The next prime is 58285889. The reversal of 58285881 is 18858285.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 24413481 = 5820^2 + 4941^2 .

It is not a de Polignac number, because 58285881 - 211 = 58283833 is a prime.

It is a super-2 number, since 2×582858812 = 6794487847892322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58285889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3238096 + ... + 3238113.

Almost surely, 258285881 is an apocalyptic number.

It is an amenable number.

58285881 is a deficient number, since it is larger than the sum of its proper divisors (25904849).

58285881 is a wasteful number, since it uses less digits than its factorization.

58285881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476215 (or 6476212 counting only the distinct ones).

The product of its digits is 204800, while the sum is 45.

The square root of 58285881 is about 7634.5190418258. The cubic root of 58285881 is about 387.7226048060.

The spelling of 58285881 in words is "fifty-eight million, two hundred eighty-five thousand, eight hundred eighty-one".

Divisors: 1 3 9 6476209 19428627 58285881