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212533105 = 51092711439
BaseRepresentation
bin11001010101011…
…11111101110001
3112210220210121111
430222233331301
5413402024410
633031153321
75160334021
oct1452577561
9483823544
10212533105
11a9a732a4
125b215841
1335054b45
1420325a81
15139d2b8a
hexcaaff71

212533105 has 16 divisors (see below), whose sum is σ = 258508800. Its totient is φ = 167728320.

The previous prime is 212533081. The next prime is 212533109. The reversal of 212533105 is 501335212.

It is not a de Polignac number, because 212533105 - 25 = 212533073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212533109) 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, 146976 + ... + 148414.

It is an arithmetic number, because the mean of its divisors is an integer number (16156800).

Almost surely, 2212533105 is an apocalyptic number.

It is an amenable number.

212533105 is a deficient number, since it is larger than the sum of its proper divisors (45975695).

212533105 is a wasteful number, since it uses less digits than its factorization.

212533105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 212533105 is about 14578.5151850248. The cubic root of 212533105 is about 596.7725827947.

Adding to 212533105 its reverse (501335212), we get a palindrome (713868317).

The spelling of 212533105 in words is "two hundred twelve million, five hundred thirty-three thousand, one hundred five".

Divisors: 1 5 109 271 545 1355 1439 7195 29539 147695 156851 389969 784255 1949845 42506621 212533105