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488440 = 23512211
BaseRepresentation
bin1110111001111111000
3220211000101
41313033320
5111112230
614245144
74103011
oct1671770
9824011
10488440
11303a77
121b67b4
13141424
14ca008
1599aca
hex773f8

488440 has 16 divisors (see below), whose sum is σ = 1099080. Its totient is φ = 195360.

The previous prime is 488419. The next prime is 488441. The reversal of 488440 is 44884.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 488399 and 488408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488441) 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, 6066 + ... + 6145.

2488440 is an apocalyptic number.

488440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

488440 is an abundant number, since it is smaller than the sum of its proper divisors (610640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

488440 is a wasteful number, since it uses less digits than its factorization.

488440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222 (or 12218 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 488440 is about 698.8848259907. The cubic root of 488440 is about 78.7535985590.

Subtracting from 488440 its reverse (44884), we obtain a square (443556 = 6662).

The spelling of 488440 in words is "four hundred eighty-eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 12211 24422 48844 61055 97688 122110 244220 488440