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488491 = 1792729
BaseRepresentation
bin1110111010000101011
3220211002021
41313100223
5111112431
614245311
74103113
oct1672053
9824067
10488491
11304013
121b6837
13141463
14ca043
1599b11
hex7742b

488491 has 4 divisors (see below), whose sum is σ = 491400. Its totient is φ = 485584.

The previous prime is 488473. The next prime is 488503. The reversal of 488491 is 194884.

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 488491 - 25 = 488459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (488401) 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, 1186 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (122850).

2488491 is an apocalyptic number.

488491 is a deficient number, since it is larger than the sum of its proper divisors (2909).

488491 is a wasteful number, since it uses less digits than its factorization.

488491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908.

The product of its digits is 9216, while the sum is 34.

The square root of 488491 is about 698.9213117369. The cubic root of 488491 is about 78.7563394577.

It can be divided in two parts, 4884 and 91, that multiplied together give a palindrome (444444).

The spelling of 488491 in words is "four hundred eighty-eight thousand, four hundred ninety-one".

Divisors: 1 179 2729 488491