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508428719 = 4311179649
BaseRepresentation
bin11110010011100…
…000000110101111
31022102200212002022
4132103200012233
52020124204334
6122241220355
715412400321
oct3623400657
91272625068
10508428719
11240aa4027
121223316bb
13814466c6
144b74b611
152e98082e
hex1e4e01af

508428719 has 4 divisors (see below), whose sum is σ = 509608800. Its totient is φ = 507248640.

The previous prime is 508428691. The next prime is 508428727. The reversal of 508428719 is 917824805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917824805 = 5183564961.

It is a cyclic number.

It is not a de Polignac number, because 508428719 - 28 = 508428463 is a prime.

It is a super-2 number, since 2×5084287192 = 516999524607961922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 508428719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508428419) 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, 589394 + ... + 590255.

It is an arithmetic number, because the mean of its divisors is an integer number (127402200).

Almost surely, 2508428719 is an apocalyptic number.

508428719 is a deficient number, since it is larger than the sum of its proper divisors (1180081).

508428719 is a wasteful number, since it uses less digits than its factorization.

508428719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180080.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 508428719 is about 22548.3639983037. The cubic root of 508428719 is about 798.1356162794.

The spelling of 508428719 in words is "five hundred eight million, four hundred twenty-eight thousand, seven hundred nineteen".

Divisors: 1 431 1179649 508428719