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542830879 = 3831417313
BaseRepresentation
bin100000010110101…
…111000100011111
31101211102122222101
4200112233010133
52102431042004
6125510425531
716310662213
oct4026570437
91354378871
10542830879
11259460968
121319622a7
1388600306
1452144943
15329c8ba4
hex205af11f

542830879 has 4 divisors (see below), whose sum is σ = 544248576. Its totient is φ = 541413184.

The previous prime is 542830819. The next prime is 542830891. The reversal of 542830879 is 978038245.

542830879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978038245 = 5195607649.

It is a cyclic number.

It is not a de Polignac number, because 542830879 - 211 = 542828831 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 (542830819) 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, 708274 + ... + 709039.

It is an arithmetic number, because the mean of its divisors is an integer number (136062144).

Almost surely, 2542830879 is an apocalyptic number.

542830879 is a deficient number, since it is larger than the sum of its proper divisors (1417697).

542830879 is a wasteful number, since it uses less digits than its factorization.

542830879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417696.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 542830879 is about 23298.7312744707. The cubic root of 542830879 is about 815.7458033151.

The spelling of 542830879 in words is "five hundred forty-two million, eight hundred thirty thousand, eight hundred seventy-nine".

Divisors: 1 383 1417313 542830879