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68016 = 24313109
BaseRepresentation
bin10000100110110000
310110022010
4100212300
54134031
61242520
7402204
oct204660
9113263
1068016
1147113
1233440
1324c60
141ab04
1515246
hex109b0

68016 has 40 divisors (see below), whose sum is σ = 190960. Its totient is φ = 20736.

The previous prime is 67993. The next prime is 68023. The reversal of 68016 is 61086.

68016 is nontrivially palindromic in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 67983 and 68001.

It is an unprimeable number.

68016 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (4774).

268016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95480).

68016 is an abundant number, since it is smaller than the sum of its proper divisors (122944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68016 is a wasteful number, since it uses less digits than its factorization.

68016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 68016 is about 260.7987730032. The cubic root of 68016 is about 40.8197520662.

It can be divided in two parts, 680 and 16, that added together give a palindrome (696).

The spelling of 68016 in words is "sixty-eight thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 109 156 208 218 312 327 436 624 654 872 1308 1417 1744 2616 2834 4251 5232 5668 8502 11336 17004 22672 34008 68016