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212414105 = 542482821
BaseRepresentation
bin11001010100100…
…10111010011001
3112210200202101002
430222102322121
5413334222410
633024434345
75156330051
oct1452227231
9483622332
10212414105
11a99a1952
125b1789b5
1335012927
14202d4561
15139ac7a5
hexca92e99

212414105 has 4 divisors (see below), whose sum is σ = 254896932. Its totient is φ = 169931280.

The previous prime is 212414087. The next prime is 212414107. The reversal of 212414105 is 501414212.

It is a happy number.

212414105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163916809 + 48497296 = 12803^2 + 6964^2 .

It is not a de Polignac number, because 212414105 - 226 = 145305241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212414107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21241406 + ... + 21241415.

It is an arithmetic number, because the mean of its divisors is an integer number (63724233).

Almost surely, 2212414105 is an apocalyptic number.

It is an amenable number.

212414105 is a deficient number, since it is larger than the sum of its proper divisors (42482827).

212414105 is an equidigital number, since it uses as much as digits as its factorization.

212414105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42482826.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 212414105 is about 14574.4332651393. The cubic root of 212414105 is about 596.6611818034.

Adding to 212414105 its reverse (501414212), we get a palindrome (713828317).

The spelling of 212414105 in words is "two hundred twelve million, four hundred fourteen thousand, one hundred five".

Divisors: 1 5 42482821 212414105