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5207173687 = 192691018817
BaseRepresentation
bin1001101100101111…
…10010101000110111
3111102220012211102201
410312113302220313
541131014024222
62220411445331
7243016150252
oct46627625067
914386184381
105207173687
11223234a731
121013a56847
1364ca58181
143757d0099
1520722b427
hex1365f2a37

5207173687 has 8 divisors (see below), whose sum is σ = 5501617200. Its totient is φ = 4914768384.

The previous prime is 5207173667. The next prime is 5207173703. The reversal of 5207173687 is 7863717025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5207173687 is a prime.

It is a super-2 number, since 2×52071736872 = 54229315613170347938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5207173637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504298 + ... + 514519.

It is an arithmetic number, because the mean of its divisors is an integer number (687702150).

Almost surely, 25207173687 is an apocalyptic number.

5207173687 is a deficient number, since it is larger than the sum of its proper divisors (294443513).

5207173687 is a wasteful number, since it uses less digits than its factorization.

5207173687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019105.

The product of its (nonzero) digits is 493920, while the sum is 46.

The square root of 5207173687 is about 72160.7489359693. The cubic root of 5207173687 is about 1733.2745277099.

The spelling of 5207173687 in words is "five billion, two hundred seven million, one hundred seventy-three thousand, six hundred eighty-seven".

Divisors: 1 19 269 5111 1018817 19357523 274061773 5207173687