Search a number
-
+
488885 = 597777
BaseRepresentation
bin1110111010110110101
3220211121212
41313112311
5111121020
614251205
74104215
oct1672665
9824555
10488885
11304341
121b6b05
131416a7
14ca245
1599cc5
hex775b5

488885 has 4 divisors (see below), whose sum is σ = 586668. Its totient is φ = 391104.

The previous prime is 488879. The next prime is 488893. The reversal of 488885 is 588884.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 339889 = 386^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 488885 - 26 = 488821 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 48884 + ... + 48893.

It is an arithmetic number, because the mean of its divisors is an integer number (146667).

2488885 is an apocalyptic number.

It is an amenable number.

488885 is a deficient number, since it is larger than the sum of its proper divisors (97783).

488885 is an equidigital number, since it uses as much as digits as its factorization.

488885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97782.

The product of its digits is 81920, while the sum is 41.

The square root of 488885 is about 699.2031178420. The cubic root of 488885 is about 78.7775078170. Note that the first 3 decimals are identical.

Subtracting 488885 from its reverse (588884), we obtain a palindrome (99999).

The spelling of 488885 in words is "four hundred eighty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 97777 488885