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201885211 = 1129798011
BaseRepresentation
bin11000000100010…
…00011000011011
3112001212211110001
430002020120123
5403140311321
632011033431
75000665423
oct1402103033
9461784401
10201885211
11a3a60390
125773b877
1332a97408
141cb53483
1512accc91
hexc08861b

201885211 has 16 divisors (see below), whose sum is σ = 230745600. Its totient is φ = 174938400.

The previous prime is 201885199. The next prime is 201885221. The reversal of 201885211 is 112588102.

It is a cyclic number.

It is not a de Polignac number, because 201885211 - 213 = 201877019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201885211.

It is not an unprimeable number, because it can be changed into a prime (201885221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21196 + ... + 29206.

It is an arithmetic number, because the mean of its divisors is an integer number (14421600).

Almost surely, 2201885211 is an apocalyptic number.

201885211 is a deficient number, since it is larger than the sum of its proper divisors (28860389).

201885211 is a wasteful number, since it uses less digits than its factorization.

201885211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 201885211 is about 14208.6315667625. The cubic root of 201885211 is about 586.6352678113.

The spelling of 201885211 in words is "two hundred one million, eight hundred eighty-five thousand, two hundred eleven".

Divisors: 1 11 29 79 319 869 2291 8011 25201 88121 232319 632869 2555509 6961559 18353201 201885211