205100330 has 16 divisors (see below), whose sum is σ = 370151424. Its totient is φ = 81824400.

The previous prime is 205100303. The next prime is 205100341. The reversal of 205100330 is 33001502.

It is a super-2 number, since 2×205100330² = 84132290732217800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22946 + ... + 30605.

It is an arithmetic number, because the mean of its divisors is an integer number (23134464).

Almost surely, 2^205100330 is an apocalyptic number.

205100330 is a deficient number, since it is larger than the sum of its proper divisors (165051094).

205100330 is a wasteful number, since it uses less digits than its factorization.

205100330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53941.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 205100330 is about 14321.3243102724. The cubic root of 205100330 is about 589.7330306104.

Adding to 205100330 its reverse (33001502), we get a palindrome (238101832).

The spelling of 205100330 in words is "two hundred five million, one hundred thousand, three hundred thirty".