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506634665 = 5101326933
BaseRepresentation
bin11110001100101…
…010000110101001
31022022022201002212
4132030222012221
52014144302130
6122134534505
715361215665
oct3614520651
91268281085
10506634665
1123aa89139
12121807435
1380c68c34
144b4018a5
152e728e95
hex1e32a1a9

506634665 has 4 divisors (see below), whose sum is σ = 607961604. Its totient is φ = 405307728.

The previous prime is 506634641. The next prime is 506634671. The reversal of 506634665 is 566436605.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234120601 + 272514064 = 15301^2 + 16508^2 .

It is a cyclic number.

It is not a de Polignac number, because 506634665 - 218 = 506372521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50663462 + ... + 50663471.

It is an arithmetic number, because the mean of its divisors is an integer number (151990401).

Almost surely, 2506634665 is an apocalyptic number.

It is an amenable number.

506634665 is a deficient number, since it is larger than the sum of its proper divisors (101326939).

506634665 is a wasteful number, since it uses less digits than its factorization.

506634665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101326938.

The product of its (nonzero) digits is 388800, while the sum is 41.

The square root of 506634665 is about 22508.5464879454. The cubic root of 506634665 is about 797.1957363046.

The spelling of 506634665 in words is "five hundred six million, six hundred thirty-four thousand, six hundred sixty-five".

Divisors: 1 5 101326933 506634665