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5315207291 = 5563955457
BaseRepresentation
bin1001111001100111…
…11010000001111011
3111201102111111200022
410330303322001323
541341143113131
62235231201055
7245500342112
oct47463720173
914642444608
105315207291
1122883289a9
12104407618b
13669252494
14385cb2c79
1521196b37b
hex13ccfa07b

5315207291 has 4 divisors (see below), whose sum is σ = 5316168312. Its totient is φ = 5314246272.

The previous prime is 5315207243. The next prime is 5315207327. The reversal of 5315207291 is 1927025135.

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-5315207291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5315207201) 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 3 ways as a sum of consecutive naturals, for example, 472166 + ... + 483291.

It is an arithmetic number, because the mean of its divisors is an integer number (1329042078).

Almost surely, 25315207291 is an apocalyptic number.

5315207291 is a deficient number, since it is larger than the sum of its proper divisors (961021).

5315207291 is an equidigital number, since it uses as much as digits as its factorization.

5315207291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961020.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 5315207291 is about 72905.4681831205. The cubic root of 5315207291 is about 1745.1793633416.

The spelling of 5315207291 in words is "five billion, three hundred fifteen million, two hundred seven thousand, two hundred ninety-one".

Divisors: 1 5563 955457 5315207291