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68285 = 571951
BaseRepresentation
bin10000101010111101
310110200002
4100222331
54141120
61244045
7403040
oct205275
9113602
1068285
1147338
1233625
1325109
141ac57
1515375
hex10abd

68285 has 8 divisors (see below), whose sum is σ = 93696. Its totient is φ = 46800.

The previous prime is 68281. The next prime is 68311. The reversal of 68285 is 58286.

68285 = 262 + 272 + ... + 602.

It is a happy number.

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

It is not a de Polignac number, because 68285 - 22 = 68281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941 + ... + 1010.

It is an arithmetic number, because the mean of its divisors is an integer number (11712).

268285 is an apocalyptic number.

It is an amenable number.

68285 is a deficient number, since it is larger than the sum of its proper divisors (25411).

68285 is a wasteful number, since it uses less digits than its factorization.

68285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 3840, while the sum is 29.

The square root of 68285 is about 261.3139873792. The cubic root of 68285 is about 40.8734946622.

Subtracting from 68285 its reverse (58286), we obtain a palindrome (9999).

It can be divided in two parts, 682 and 85, that multiplied together give a triangular number (57970 = T340).

The spelling of 68285 in words is "sixty-eight thousand, two hundred eighty-five".

Divisors: 1 5 7 35 1951 9755 13657 68285