Search a number
-
+
68679 = 3213587
BaseRepresentation
bin10000110001000111
310111012200
4100301013
54144204
61245543
7404142
oct206107
9114180
1068679
1147666
12338b3
1325350
141b059
1515539
hex10c47

68679 has 12 divisors (see below), whose sum is σ = 107016. Its totient is φ = 42192.

The previous prime is 68669. The next prime is 68683. The reversal of 68679 is 97686.

It is not a de Polignac number, because 68679 - 215 = 35911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68639) 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 11 ways as a sum of consecutive naturals, for example, 177 + ... + 410.

It is an arithmetic number, because the mean of its divisors is an integer number (8918).

268679 is an apocalyptic number.

68679 is a deficient number, since it is larger than the sum of its proper divisors (38337).

68679 is a wasteful number, since it uses less digits than its factorization.

68679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 603 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 68679 is about 262.0667853811. The cubic root of 68679 is about 40.9519564156.

It can be divided in two parts, 68 and 679, that added together give a palindrome (747).

The spelling of 68679 in words is "sixty-eight thousand, six hundred seventy-nine".

Divisors: 1 3 9 13 39 117 587 1761 5283 7631 22893 68679