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487393 = 2321191
BaseRepresentation
bin1110110111111100001
3220202120121
41312333201
5111044033
614240241
74066654
oct1667741
9822517
10487393
11303205
121b6081
13140aca
14c989b
159962d
hex76fe1

487393 has 4 divisors (see below), whose sum is σ = 508608. Its totient is φ = 466180.

The previous prime is 487391. The next prime is 487397. The reversal of 487393 is 393784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 487393 - 21 = 487391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487391) 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, 10573 + ... + 10618.

It is an arithmetic number, because the mean of its divisors is an integer number (127152).

2487393 is an apocalyptic number.

It is an amenable number.

487393 is a deficient number, since it is larger than the sum of its proper divisors (21215).

487393 is a wasteful number, since it uses less digits than its factorization.

487393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21214.

The product of its digits is 18144, while the sum is 34.

The square root of 487393 is about 698.1353736920. The cubic root of 487393 is about 78.6972873071.

The spelling of 487393 in words is "four hundred eighty-seven thousand, three hundred ninety-three".

Divisors: 1 23 21191 487393