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52487679 = 323799629
BaseRepresentation
bin1100100000111…
…0010111111111
310122202122120010
43020032113333
5101414101204
65112554303
71205065206
oct310162777
9118678503
1052487679
112769a852
12156b2993
13ab497ca
146d8423d
15491bd89
hex320e5ff

52487679 has 16 divisors (see below), whose sum is σ = 73958400. Its totient is φ = 33043296.

The previous prime is 52487641. The next prime is 52487683. The reversal of 52487679 is 97678425.

It is a de Polignac number, because none of the positive numbers 2k-52487679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52487609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637 + ... + 10265.

It is an arithmetic number, because the mean of its divisors is an integer number (4622400).

Almost surely, 252487679 is an apocalyptic number.

52487679 is a deficient number, since it is larger than the sum of its proper divisors (21470721).

52487679 is a wasteful number, since it uses less digits than its factorization.

52487679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734.

The product of its digits is 846720, while the sum is 48.

The square root of 52487679 is about 7244.8380934290. The cubic root of 52487679 is about 374.4143248797.

The spelling of 52487679 in words is "fifty-two million, four hundred eighty-seven thousand, six hundred seventy-nine".

Divisors: 1 3 23 69 79 237 1817 5451 9629 28887 221467 664401 760691 2282073 17495893 52487679