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506005517 = 817161927
BaseRepresentation
bin11110001010010…
…000100000001101
31022021010202002002
4132022100200031
52014014134032
6122113242045
715352655513
oct3612204015
91267122062
10506005517
1123a699486
12121563325
1380aa8764
144b2ba4b3
152e652862
hex1e29080d

506005517 has 4 divisors (see below), whose sum is σ = 506075616. Its totient is φ = 505935420.

The previous prime is 506005483. The next prime is 506005523. The reversal of 506005517 is 715500605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506005517 - 28 = 506005261 is a prime.

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 506005517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506005537) 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 3 ways as a sum of consecutive naturals, for example, 22793 + ... + 39134.

It is an arithmetic number, because the mean of its divisors is an integer number (126518904).

Almost surely, 2506005517 is an apocalyptic number.

It is an amenable number.

506005517 is a deficient number, since it is larger than the sum of its proper divisors (70099).

506005517 is an equidigital number, since it uses as much as digits as its factorization.

506005517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70098.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 506005517 is about 22494.5663883525. The cubic root of 506005517 is about 796.8656089669.

The spelling of 506005517 in words is "five hundred six million, five thousand, five hundred seventeen".

Divisors: 1 8171 61927 506005517