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538495859 = 11217261787
BaseRepresentation
bin100000000110001…
…100101101110011
31101112021102110002
4200012030231303
52100323331414
6125233500215
716226065526
oct4006145563
91345242402
10538495859
11256a6aa00
1213041166b
1387743105
1451736bbd
153241e4de
hex2018cb73

538495859 has 12 divisors (see below), whose sum is σ = 626720472. Its totient is φ = 460743360.

The previous prime is 538495829. The next prime is 538495871. The reversal of 538495859 is 958594835.

It is not a de Polignac number, because 538495859 - 212 = 538491763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538495829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128837 + ... + 132950.

It is an arithmetic number, because the mean of its divisors is an integer number (52226706).

Almost surely, 2538495859 is an apocalyptic number.

538495859 is a deficient number, since it is larger than the sum of its proper divisors (88224613).

538495859 is a wasteful number, since it uses less digits than its factorization.

538495859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261826 (or 261815 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 56.

The square root of 538495859 is about 23205.5135474309. The cubic root of 538495859 is about 813.5684954277.

The spelling of 538495859 in words is "five hundred thirty-eight million, four hundred ninety-five thousand, eight hundred fifty-nine".

Divisors: 1 11 17 121 187 2057 261787 2879657 4450379 31676227 48954169 538495859