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523105315 = 5315775849
BaseRepresentation
bin11111001011011…
…111010000100011
31100110022111120221
4133023133100203
52032403332230
6123523543511
715651215245
oct3713372043
91313274527
10523105315
11249308847
1212722ab97
13844b4a95
144d68c095
1530dce27a
hex1f2df423

523105315 has 16 divisors (see below), whose sum is σ = 649209600. Its totient is φ = 404213760.

The previous prime is 523105309. The next prime is 523105327. The reversal of 523105315 is 513501325.

It is a de Polignac number, because none of the positive numbers 2k-523105315 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523105315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86511 + ... + 92359.

It is an arithmetic number, because the mean of its divisors is an integer number (40575600).

Almost surely, 2523105315 is an apocalyptic number.

523105315 is a deficient number, since it is larger than the sum of its proper divisors (126104285).

523105315 is a wasteful number, since it uses less digits than its factorization.

523105315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 523105315 is about 22871.4956878644. The cubic root of 523105315 is about 805.7426963884.

The spelling of 523105315 in words is "five hundred twenty-three million, one hundred five thousand, three hundred fifteen".

Divisors: 1 5 31 155 577 2885 5849 17887 29245 89435 181319 906595 3374873 16874365 104621063 523105315