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5278879 = 6186539
BaseRepresentation
bin10100001000110010011111
3100221012021001
4110020302133
52322411004
6305051131
762604214
oct24106237
910835231
105278879
112a86111
121926aa7
13112a9c8
149b5b0b
156e41a4
hex508c9f

5278879 has 4 divisors (see below), whose sum is σ = 5365480. Its totient is φ = 5192280.

The previous prime is 5278877. The next prime is 5278913. The reversal of 5278879 is 9788725.

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

It is a cyclic number.

It is not a de Polignac number, because 5278879 - 21 = 5278877 is a prime.

It is a super-4 number, since 4×52788794 (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

5278879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43209 + ... + 43330.

It is an arithmetic number, because the mean of its divisors is an integer number (1341370).

Almost surely, 25278879 is an apocalyptic number.

5278879 is a deficient number, since it is larger than the sum of its proper divisors (86601).

5278879 is an equidigital number, since it uses as much as digits as its factorization.

5278879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86600.

The product of its digits is 282240, while the sum is 46.

The square root of 5278879 is about 2297.5811193514. The cubic root of 5278879 is about 174.1194296118.

The spelling of 5278879 in words is "five million, two hundred seventy-eight thousand, eight hundred seventy-nine".

Divisors: 1 61 86539 5278879