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205663052 = 22731415779
BaseRepresentation
bin11000100001000…
…10101101001100
3112022222202200002
430100202231030
5410122204202
632224023432
75045051510
oct1420425514
9468882602
10205663052
11a6100771
1258a61b78
13337bab1a
141d458140
15130c7302
hexc422b4c

205663052 has 48 divisors (see below), whose sum is σ = 435025920. Its totient is φ = 83203200.

The previous prime is 205663019. The next prime is 205663063. The reversal of 205663052 is 250366502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32699 + ... + 38477.

It is an arithmetic number, because the mean of its divisors is an integer number (9063040).

Almost surely, 2205663052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205663052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217512960).

205663052 is an abundant number, since it is smaller than the sum of its proper divisors (229362868).

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

205663052 is a wasteful number, since it uses less digits than its factorization.

205663052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862 (or 5860 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 205663052 is about 14340.9571507623. The cubic root of 205663052 is about 590.2718769957.

The spelling of 205663052 in words is "two hundred five million, six hundred sixty-three thousand, fifty-two".

Divisors: 1 2 4 7 14 28 31 41 62 82 124 164 217 287 434 574 868 1148 1271 2542 5084 5779 8897 11558 17794 23116 35588 40453 80906 161812 179149 236939 358298 473878 716596 947756 1254043 1658573 2508086 3317146 5016172 6634292 7345109 14690218 29380436 51415763 102831526 205663052