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518896081 = 11101346567
BaseRepresentation
bin11110111011011…
…011100111010001
31100011101122121101
4132323123213101
52030314133311
6123253424401
715600354364
oct3673334721
91304348541
10518896081
112469a3340
1212593b101
138366cc02
144ccb40db
153084bec1
hex1eedb9d1

518896081 has 8 divisors (see below), whose sum is σ = 566639424. Its totient is φ = 471247920.

The previous prime is 518896069. The next prime is 518896097. The reversal of 518896081 is 180698815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 518896081 - 227 = 384678353 is a prime.

It is a super-2 number, since 2×5188960812 = 538506285754317122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518896051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12141 + ... + 34426.

It is an arithmetic number, because the mean of its divisors is an integer number (70829928).

Almost surely, 2518896081 is an apocalyptic number.

It is an amenable number.

518896081 is a deficient number, since it is larger than the sum of its proper divisors (47743343).

518896081 is a wasteful number, since it uses less digits than its factorization.

518896081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47591.

The product of its (nonzero) digits is 138240, while the sum is 46.

The square root of 518896081 is about 22779.2906166983. The cubic root of 518896081 is about 803.5757029781.

It can be divided in two parts, 51889 and 6081, that added together give a triangular number (57970 = T340).

The spelling of 518896081 in words is "five hundred eighteen million, eight hundred ninety-six thousand, eighty-one".

Divisors: 1 11 1013 11143 46567 512237 47172371 518896081