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68895 = 3251531
BaseRepresentation
bin10000110100011111
310111111200
4100310133
54201040
61250543
7404601
oct206437
9114450
1068895
1147842
1233a53
1325488
141b171
1515630
hex10d1f

68895 has 12 divisors (see below), whose sum is σ = 119496. Its totient is φ = 36720.

The previous prime is 68891. The next prime is 68897. The reversal of 68895 is 59886.

It is not a de Polignac number, because 68895 - 22 = 68891 is a prime.

68895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (9958).

268895 is an apocalyptic number.

68895 is a deficient number, since it is larger than the sum of its proper divisors (50601).

68895 is a wasteful number, since it uses less digits than its factorization.

68895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1539 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 68895 is about 262.4785705539. The cubic root of 68895 is about 40.9948436902.

Subtracting from 68895 its product of digits (17280), we obtain a palindrome (51615).

Subtracting from 68895 its reverse (59886), we obtain a palindrome (9009).

The spelling of 68895 in words is "sixty-eight thousand, eight hundred ninety-five".

Divisors: 1 3 5 9 15 45 1531 4593 7655 13779 22965 68895