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542792873 = 777541839
BaseRepresentation
bin100000010110100…
…101110010101001
31101211100201211202
4200112211302221
52102423332443
6125505533545
716310443340
oct4026456251
91354321752
10542792873
11259435357
121319442b5
13885b8c1c
1452134b57
15329bc7b8
hex205a5ca9

542792873 has 4 divisors (see below), whose sum is σ = 620334720. Its totient is φ = 465251028.

The previous prime is 542792869. The next prime is 542792879. The reversal of 542792873 is 378297245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 378297245 = 575659449.

It is a cyclic number.

It is not a de Polignac number, because 542792873 - 22 = 542792869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542792879) 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 3 ways as a sum of consecutive naturals, for example, 38770913 + ... + 38770926.

It is an arithmetic number, because the mean of its divisors is an integer number (155083680).

Almost surely, 2542792873 is an apocalyptic number.

It is an amenable number.

542792873 is a deficient number, since it is larger than the sum of its proper divisors (77541847).

542792873 is an equidigital number, since it uses as much as digits as its factorization.

542792873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77541846.

The product of its digits is 846720, while the sum is 47.

The square root of 542792873 is about 23297.9156363826. The cubic root of 542792873 is about 815.7267648756.

The spelling of 542792873 in words is "five hundred forty-two million, seven hundred ninety-two thousand, eight hundred seventy-three".

Divisors: 1 7 77541839 542792873