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212112033 = 3721442939
BaseRepresentation
bin11001010010010…
…01001010100001
3112210010102000020
430221021022201
5413300041113
633014144053
75153631300
oct1451111241
9483112006
10212112033
11a9805a01
125b052029
1334c382a3
1420256437
151394d023
hexca492a1

212112033 has 12 divisors (see below), whose sum is σ = 328990320. Its totient is φ = 121206792.

The previous prime is 212112023. The next prime is 212112059. The reversal of 212112033 is 330211212.

It is not a de Polignac number, because 212112033 - 25 = 212112001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212112023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721323 + ... + 721616.

It is an arithmetic number, because the mean of its divisors is an integer number (27415860).

Almost surely, 2212112033 is an apocalyptic number.

It is an amenable number.

212112033 is a deficient number, since it is larger than the sum of its proper divisors (116878287).

212112033 is a wasteful number, since it uses less digits than its factorization.

212112033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442956 (or 1442949 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 212112033 is about 14564.0664994362. The cubic root of 212112033 is about 596.3782123011.

Adding to 212112033 its reverse (330211212), we get a palindrome (542323245).

The spelling of 212112033 in words is "two hundred twelve million, one hundred twelve thousand, thirty-three".

Divisors: 1 3 7 21 49 147 1442939 4328817 10100573 30301719 70704011 212112033