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212010211 = 7210142839
BaseRepresentation
bin11001010001100…
…00010011100011
3112202221020100001
430220300103203
5413233311321
633012040431
75153025400
oct1450602343
9482836301
10212010211
11a9746456
125b003117
1334c00b3a
142022b2a7
151392cc91
hexca304e3

212010211 has 12 divisors (see below), whose sum is σ = 249071760. Its totient is φ = 179919600.

The previous prime is 212010203. The next prime is 212010217. The reversal of 212010211 is 112010212.

It is not a de Polignac number, because 212010211 - 23 = 212010203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212010217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16471 + ... + 26368.

It is an arithmetic number, because the mean of its divisors is an integer number (20755980).

Almost surely, 2212010211 is an apocalyptic number.

212010211 is a deficient number, since it is larger than the sum of its proper divisors (37061549).

212010211 is a wasteful number, since it uses less digits than its factorization.

212010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42954 (or 42947 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 212010211 is about 14560.5704215185. The cubic root of 212010211 is about 596.2827688056.

Adding to 212010211 its reverse (112010212), we get a palindrome (324020423).

Subtracting from 212010211 its reverse (112010212), we obtain a palindrome (99999999).

The spelling of 212010211 in words is "two hundred twelve million, ten thousand, two hundred eleven".

Divisors: 1 7 49 101 707 4949 42839 299873 2099111 4326739 30287173 212010211