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205230250 = 253820921
BaseRepresentation
bin11000011101110…
…01000010101010
3112022011202222101
430032321002222
5410014332000
632210444014
75041266631
oct1416710252
9468152871
10205230250
11a5935585
125889360a
1333698b24
141d384518
151303de6a
hexc3b90aa

205230250 has 16 divisors (see below), whose sum is σ = 384191496. Its totient is φ = 82092000.

The previous prime is 205230227. The next prime is 205230251. The reversal of 205230250 is 52032502.

It can be written as a sum of positive squares in 4 ways, for example, as 35892081 + 169338169 = 5991^2 + 13013^2 .

It is not an unprimeable number, because it can be changed into a prime (205230251) by changing a digit.

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, 410211 + ... + 410710.

Almost surely, 2205230250 is an apocalyptic number.

205230250 is a deficient number, since it is larger than the sum of its proper divisors (178961246).

205230250 is an equidigital number, since it uses as much as digits as its factorization.

205230250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820938 (or 820928 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 205230250 is about 14325.8594855597. The cubic root of 205230250 is about 589.8575256859.

Adding to 205230250 its reverse (52032502), we get a palindrome (257262752).

The spelling of 205230250 in words is "two hundred five million, two hundred thirty thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 820921 1641842 4104605 8209210 20523025 41046050 102615125 205230250