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560987 = 780141
BaseRepresentation
bin10001000111101011011
31001111112022
42020331123
5120422422
620005055
74524350
oct2107533
91044468
10560987
11353529
1223078b
1316845b
14108627
15b1342
hex88f5b

560987 has 4 divisors (see below), whose sum is σ = 641136. Its totient is φ = 480840.

The previous prime is 560977. The next prime is 561019. The reversal of 560987 is 789065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789065 = 5157813.

It is a cyclic number.

It is not a de Polignac number, because 560987 - 212 = 556891 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 560987.

It is not an unprimeable number, because it can be changed into a prime (560977) 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, 40064 + ... + 40077.

It is an arithmetic number, because the mean of its divisors is an integer number (160284).

2560987 is an apocalyptic number.

560987 is a deficient number, since it is larger than the sum of its proper divisors (80149).

560987 is an equidigital number, since it uses as much as digits as its factorization.

560987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80148.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 560987 is about 748.9906541473. The cubic root of 560987 is about 82.4741026765.

The spelling of 560987 in words is "five hundred sixty thousand, nine hundred eighty-seven".

Divisors: 1 7 80141 560987