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68885 = 523599
BaseRepresentation
bin10000110100010101
310111111022
4100310111
54201020
61250525
7404555
oct206425
9114438
1068885
1147833
1233a45
132547b
141b165
1515625
hex10d15

68885 has 8 divisors (see below), whose sum is σ = 86400. Its totient is φ = 52624.

The previous prime is 68881. The next prime is 68891. The reversal of 68885 is 58886.

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

It is not a de Polignac number, because 68885 - 22 = 68881 is a prime.

It is a d-powerful number, because it can be written as 63 + 8 + 85 + 85 + 55 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185 + ... + 414.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

268885 is an apocalyptic number.

It is an amenable number.

68885 is a deficient number, since it is larger than the sum of its proper divisors (17515).

68885 is a wasteful number, since it uses less digits than its factorization.

68885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 15360, while the sum is 35.

The square root of 68885 is about 262.4595206884. The cubic root of 68885 is about 40.9928601487.

Subtracting from 68885 its reverse (58886), we obtain a palindrome (9999).

The spelling of 68885 in words is "sixty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 23 115 599 2995 13777 68885