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205234330 = 2572931919
BaseRepresentation
bin11000011101110…
…10000010011010
3112022011222120111
430032322002122
5410014444310
632210514534
75041314550
oct1416720232
9468158514
10205234330
11a5938654
1258895a4a
133369a942
141d385bd0
151304028a
hexc3ba09a

205234330 has 16 divisors (see below), whose sum is σ = 422196480. Its totient is φ = 70366032.

The previous prime is 205234327. The next prime is 205234343. The reversal of 205234330 is 33432502.

It is a super-2 number, since 2×2052343302 = 84242260421097800, 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, 1465890 + ... + 1466029.

It is an arithmetic number, because the mean of its divisors is an integer number (26387280).

Almost surely, 2205234330 is an apocalyptic number.

205234330 is an abundant number, since it is smaller than the sum of its proper divisors (216962150).

205234330 is a wasteful number, since it uses less digits than its factorization.

205234330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931933.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 205234330 is about 14326.0018846851. The cubic root of 205234330 is about 589.8614344709.

Adding to 205234330 its reverse (33432502), we get a palindrome (238666832).

The spelling of 205234330 in words is "two hundred five million, two hundred thirty-four thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2931919 5863838 14659595 20523433 29319190 41046866 102617165 205234330