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211105475 = 5272172331
BaseRepresentation
bin11001001010100…
…11011011000011
3112201020021021022
430211103123003
5413020333400
632540420055
75142236600
oct1445233303
9481207238
10211105475
11a9188739
125a84762b
13349750a9
14200736a7
15137eeb85
hexc9536c3

211105475 has 18 divisors (see below), whose sum is σ = 304510644. Its totient is φ = 144757200.

The previous prime is 211105463. The next prime is 211105483. The reversal of 211105475 is 574501112.

211105475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211105475 - 224 = 194328259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84941 + ... + 87390.

It is an arithmetic number, because the mean of its divisors is an integer number (16917258).

Almost surely, 2211105475 is an apocalyptic number.

211105475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

211105475 is a deficient number, since it is larger than the sum of its proper divisors (93405169).

211105475 is a wasteful number, since it uses less digits than its factorization.

211105475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172355 (or 172343 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 211105475 is about 14529.4691919561. The cubic root of 211105475 is about 595.4333636404.

Adding to 211105475 its reverse (574501112), we get a palindrome (785606587).

The spelling of 211105475 in words is "two hundred eleven million, one hundred five thousand, four hundred seventy-five".

Divisors: 1 5 7 25 35 49 175 245 1225 172331 861655 1206317 4308275 6031585 8444219 30157925 42221095 211105475