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5505308687 = 28723191669
BaseRepresentation
bin1010010000010010…
…00101100000001111
3112012200012122202202
411020021011200033
542233324334222
62310141512115
7253266231434
oct51011054017
915180178682
105505308687
11237566a99a
12109787263b
13699752108
143a3239b8b
152234bc892
hex14824580f

5505308687 has 4 divisors (see below), whose sum is σ = 5505529080. Its totient is φ = 5505088296.

The previous prime is 5505308663. The next prime is 5505308701. The reversal of 5505308687 is 7868035055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5505308687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5505398687) 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, 67112 + ... + 124557.

It is an arithmetic number, because the mean of its divisors is an integer number (1376382270).

Almost surely, 25505308687 is an apocalyptic number.

5505308687 is a deficient number, since it is larger than the sum of its proper divisors (220393).

5505308687 is a wasteful number, since it uses less digits than its factorization.

5505308687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220392.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The square root of 5505308687 is about 74197.7673990262. The cubic root of 5505308687 is about 1765.7419097138.

The spelling of 5505308687 in words is "five billion, five hundred five million, three hundred eight thousand, six hundred eighty-seven".

Divisors: 1 28723 191669 5505308687