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518419092 = 22343201591
BaseRepresentation
bin11110111001100…
…111001010010100
31100010111102022010
4132321213022110
52030203402332
6123235304220
715563326632
oct3671471224
91303442263
10518419092
112466a7a34
1212574b070
1383533a79
144cbcc352
15307a59cc
hex1ee67294

518419092 has 12 divisors (see below), whose sum is σ = 1209644576. Its totient is φ = 172806360.

The previous prime is 518419091. The next prime is 518419117. The reversal of 518419092 is 290914815.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 518419092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518419091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21600784 + ... + 21600807.

Almost surely, 2518419092 is an apocalyptic number.

It is an amenable number.

518419092 is an abundant number, since it is smaller than the sum of its proper divisors (691225484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518419092 is a wasteful number, since it uses less digits than its factorization.

518419092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43201598 (or 43201596 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 518419092 is about 22768.8184146653. The cubic root of 518419092 is about 803.3294017166.

The spelling of 518419092 in words is "five hundred eighteen million, four hundred nineteen thousand, ninety-two".

Divisors: 1 2 3 4 6 12 43201591 86403182 129604773 172806364 259209546 518419092