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987385 = 5728211
BaseRepresentation
bin11110001000011111001
31212011102211
43301003321
5223044020
633055121
711251450
oct3610371
91764384
10987385
11614923
123b74a1
13287569
141b9b97
1514785a
hexf10f9

987385 has 8 divisors (see below), whose sum is σ = 1354176. Its totient is φ = 677040.

The previous prime is 987383. The next prime is 987391. The reversal of 987385 is 583789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 987385 - 21 = 987383 is a prime.

It is a Duffinian number.

987385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (987383) 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 7 ways as a sum of consecutive naturals, for example, 14071 + ... + 14140.

It is an arithmetic number, because the mean of its divisors is an integer number (169272).

2987385 is an apocalyptic number.

It is an amenable number.

987385 is a deficient number, since it is larger than the sum of its proper divisors (366791).

987385 is a wasteful number, since it uses less digits than its factorization.

987385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28223.

The product of its digits is 60480, while the sum is 40.

The square root of 987385 is about 993.6724812533. The cubic root of 987385 is about 99.5777193002.

The spelling of 987385 in words is "nine hundred eighty-seven thousand, three hundred eighty-five".

Divisors: 1 5 7 35 28211 141055 197477 987385