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200255890 = 25411094481
BaseRepresentation
bin10111110111110…
…10100110010010
3111221211001102211
423323322212102
5402231142030
631512102334
74651101262
oct1373724622
9457731384
10200255890
11a304823a
12570949aa
1332646913
141c84b7a2
15128aa12a
hexbefa992

200255890 has 32 divisors (see below), whose sum is σ = 372723120. Its totient is φ = 77414400.

The previous prime is 200255789. The next prime is 200255893. The reversal of 200255890 is 98552002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 80156209 + 120099681 = 8953^2 + 10959^2 .

It is not an unprimeable number, because it can be changed into a prime (200255893) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42450 + ... + 46930.

Almost surely, 2200255890 is an apocalyptic number.

200255890 is a deficient number, since it is larger than the sum of its proper divisors (172467230).

200255890 is a wasteful number, since it uses less digits than its factorization.

200255890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 200255890 is about 14151.1798094717. The cubic root of 200255890 is about 585.0528503157.

The spelling of 200255890 in words is "two hundred million, two hundred fifty-five thousand, eight hundred ninety".

Divisors: 1 2 5 10 41 82 109 205 218 410 545 1090 4469 4481 8938 8962 22345 22405 44690 44810 183721 367442 488429 918605 976858 1837210 2442145 4884290 20025589 40051178 100127945 200255890