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200475561 = 311133131493
BaseRepresentation
bin10111111001100…
…00001110101001
3111222020012202210
423330300032221
5402310204221
631520515333
74653004566
oct1374601651
9458205683
10200475561
11a3188290
125717bb49
13326c28c0
141c8a786d
1512900276
hexbf303a9

200475561 has 32 divisors (see below), whose sum is σ = 315245952. Its totient is φ = 111720960.

The previous prime is 200475533. The next prime is 200475563. The reversal of 200475561 is 165574002.

It is not a de Polignac number, because 200475561 - 26 = 200475497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200475563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133531 + ... + 135023.

It is an arithmetic number, because the mean of its divisors is an integer number (9851436).

Almost surely, 2200475561 is an apocalyptic number.

It is an amenable number.

200475561 is a deficient number, since it is larger than the sum of its proper divisors (114770391).

200475561 is a wasteful number, since it uses less digits than its factorization.

200475561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 200475561 is about 14158.9392611170. The cubic root of 200475561 is about 585.2666970099.

The spelling of 200475561 in words is "two hundred million, four hundred seventy-five thousand, five hundred sixty-one".

Divisors: 1 3 11 13 33 39 143 313 429 939 1493 3443 4069 4479 10329 12207 16423 19409 44759 49269 58227 134277 213499 467309 640497 1401927 5140399 6075017 15421197 18225051 66825187 200475561