81083300 has 36 divisors (see below), whose sum is σ = 176447040. Its totient is φ = 32341920.

The previous prime is 81083297. The next prime is 81083323. The reversal of 81083300 is 338018.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42977 + ... + 44823.

Almost surely, 2^81083300 is an apocalyptic number.

It is an amenable number.

81083300 is an abundant number, since it is smaller than the sum of its proper divisors (95363740).

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

81083300 is a wasteful number, since it uses less digits than its factorization.

81083300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 81083300 is about 9004.6265885932. The cubic root of 81083300 is about 432.8231405109.

The spelling of 81083300 in words is "eighty-one million, eighty-three thousand, three hundred".