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204416245 = 51117218627
BaseRepresentation
bin11000010111100…
…10010011110101
3112020122102101001
430023302103311
5404312304440
632141203301
75031336505
oct1413622365
9466572331
10204416245
11a5429a50
1258560531
1333472477
141d211a05
1512e2cb9a
hexc2f24f5

204416245 has 16 divisors (see below), whose sum is σ = 283341888. Its totient is φ = 139920640.

The previous prime is 204416239. The next prime is 204416291. The reversal of 204416245 is 542614402.

It is not a de Polignac number, because 204416245 - 29 = 204415733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108379 + ... + 110248.

It is an arithmetic number, because the mean of its divisors is an integer number (17708868).

Almost surely, 2204416245 is an apocalyptic number.

It is an amenable number.

204416245 is a deficient number, since it is larger than the sum of its proper divisors (78925643).

204416245 is a wasteful number, since it uses less digits than its factorization.

204416245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218660.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 204416245 is about 14297.4209212711. The cubic root of 204416245 is about 589.0766414835.

The spelling of 204416245 in words is "two hundred four million, four hundred sixteen thousand, two hundred forty-five".

Divisors: 1 5 11 17 55 85 187 935 218627 1093135 2404897 3716659 12024485 18583295 40883249 204416245