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51879 = 317293
BaseRepresentation
bin1100101010100111
32122011110
430222213
53130004
61040103
7304152
oct145247
978143
1051879
1135a83
1226033
131a7c9
1414c99
1510589
hexcaa7

51879 has 4 divisors (see below), whose sum is σ = 69176. Its totient is φ = 34584.

The previous prime is 51871. The next prime is 51893. The reversal of 51879 is 97815.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51879 - 23 = 51871 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51871) 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, 8644 + ... + 8649.

It is an arithmetic number, because the mean of its divisors is an integer number (17294).

251879 is an apocalyptic number.

51879 is a deficient number, since it is larger than the sum of its proper divisors (17297).

51879 is a wasteful number, since it uses less digits than its factorization.

51879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17296.

The product of its digits is 2520, while the sum is 30.

The square root of 51879 is about 227.7696204501. The cubic root of 51879 is about 37.2961381958.

The spelling of 51879 in words is "fifty-one thousand, eight hundred seventy-nine".

Divisors: 1 3 17293 51879