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488531 = 3791289
BaseRepresentation
bin1110111010001010011
3220211010202
41313101103
5111113111
614245415
74103201
oct1672123
9824122
10488531
1130404a
121b686b
13141494
14ca071
1599b3b
hex77453

488531 has 4 divisors (see below), whose sum is σ = 490200. Its totient is φ = 486864.

The previous prime is 488513. The next prime is 488539. The reversal of 488531 is 135884.

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 488531 - 210 = 487507 is a prime.

It is a super-2 number, since 2×4885312 = 477325075922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 488494 and 488503.

It is not an unprimeable number, because it can be changed into a prime (488539) 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, 266 + ... + 1023.

It is an arithmetic number, because the mean of its divisors is an integer number (122550).

2488531 is an apocalyptic number.

488531 is a deficient number, since it is larger than the sum of its proper divisors (1669).

488531 is a wasteful number, since it uses less digits than its factorization.

488531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its digits is 3840, while the sum is 29.

The square root of 488531 is about 698.9499266757. The cubic root of 488531 is about 78.7584890488.

The spelling of 488531 in words is "four hundred eighty-eight thousand, five hundred thirty-one".

Divisors: 1 379 1289 488531