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488889 = 3319953
BaseRepresentation
bin1110111010110111001
3220211122000
41313112321
5111121024
614251213
74104222
oct1672671
9824560
10488889
11304345
121b6b09
131416ab
14ca249
1599cc9
hex775b9

488889 has 16 divisors (see below), whose sum is σ = 763200. Its totient is φ = 308448.

The previous prime is 488879. The next prime is 488893. The reversal of 488889 is 988884.

It is not a de Polignac number, because 488889 - 28 = 488633 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (488879) 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 15 ways as a sum of consecutive naturals, for example, 37 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (47700).

2488889 is an apocalyptic number.

It is an amenable number.

488889 is a deficient number, since it is larger than the sum of its proper divisors (274311).

488889 is a wasteful number, since it uses less digits than its factorization.

488889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 975 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 488889 is about 699.2059782353. The cubic root of 488889 is about 78.7777226658. Note that the first 4 decimals are identical.

The spelling of 488889 in words is "four hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 9 19 27 57 171 513 953 2859 8577 18107 25731 54321 162963 488889