30996 is nontrivially palindromic in base 5.
It is a nialpdrome in base 14.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30996.
It is an unprimeable number.
30996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
230996 is an apocalyptic number.
30996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30996 is a wasteful number, since it uses less digits than its factorization.
30996 is an odious number, because the sum of its binary digits is odd.
The square root of 30996 is about 176.0568090135. The cubic root of 30996 is about 31.4124553343.
The spelling of 30996 in words is "thirty thousand, nine hundred ninety-six".