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200869866 = 23259732591
BaseRepresentation
bin10111111100100…
…00011111101010
3111222222020122200
423332100133222
5402410313431
631533201030
74656236301
oct1376203752
9458866580
10200869866
11a342755a
1257330176
1332800212
141c96b438
151297bee6
hexbf907ea

200869866 has 48 divisors (see below), whose sum is σ = 448830720. Its totient is φ = 64895040.

The previous prime is 200869859. The next prime is 200869883. The reversal of 200869866 is 668968002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76231 + ... + 78821.

It is an arithmetic number, because the mean of its divisors is an integer number (9350640).

Almost surely, 2200869866 is an apocalyptic number.

200869866 is an abundant number, since it is smaller than the sum of its proper divisors (247960854).

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

200869866 is a wasteful number, since it uses less digits than its factorization.

200869866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 200869866 is about 14172.8566633548. The cubic root of 200869866 is about 585.6501559713.

The spelling of 200869866 in words is "two hundred million, eight hundred sixty-nine thousand, eight hundred sixty-six".

Divisors: 1 2 3 6 9 18 59 73 118 146 177 219 354 438 531 657 1062 1314 2591 4307 5182 7773 8614 12921 15546 23319 25842 38763 46638 77526 152869 189143 305738 378286 458607 567429 917214 1134858 1375821 1702287 2751642 3404574 11159437 22318874 33478311 66956622 100434933 200869866