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212412055 = 5971912293
BaseRepresentation
bin11001010100100…
…10011010010111
3112210200122120011
430222102122113
5413334141210
633024421051
75156321062
oct1452223227
9483618504
10212412055
11a99a0359
125b177787
1335011a0b
14202d38d9
15139abd8a
hexca92697

212412055 has 16 divisors (see below), whose sum is σ = 258983424. Its totient is φ = 167224320.

The previous prime is 212412019. The next prime is 212412073. The reversal of 212412055 is 550214212.

212412055 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 212412055 - 215 = 212379287 is a prime.

It is a super-2 number, since 2×2124120552 = 90237762218646050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91489 + ... + 93781.

It is an arithmetic number, because the mean of its divisors is an integer number (16186464).

Almost surely, 2212412055 is an apocalyptic number.

212412055 is a deficient number, since it is larger than the sum of its proper divisors (46571369).

212412055 is a wasteful number, since it uses less digits than its factorization.

212412055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 212412055 is about 14574.3629363345. The cubic root of 212412055 is about 596.6592623462.

Adding to 212412055 its reverse (550214212), we get a palindrome (762626267).

The spelling of 212412055 in words is "two hundred twelve million, four hundred twelve thousand, fifty-five".

Divisors: 1 5 97 191 485 955 2293 11465 18527 92635 222421 437963 1112105 2189815 42482411 212412055