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212114513 = 1316316501
BaseRepresentation
bin11001010010010…
…01110001010001
3112210010112102002
430221021301101
5413300131023
633014203345
75153641442
oct1451116121
9483115362
10212114513
11a9807856
125b053555
1334c39460
14202572c9
151394db28
hexca49c51

212114513 has 4 divisors (see below), whose sum is σ = 228431028. Its totient is φ = 195798000.

The previous prime is 212114479. The next prime is 212114521. The reversal of 212114513 is 315411212.

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 85507009 + 126607504 = 9247^2 + 11252^2 .

It is a cyclic number.

It is not a de Polignac number, because 212114513 - 26 = 212114449 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 (212114543) 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, 8158238 + ... + 8158263.

It is an arithmetic number, because the mean of its divisors is an integer number (57107757).

Almost surely, 2212114513 is an apocalyptic number.

It is an amenable number.

212114513 is a deficient number, since it is larger than the sum of its proper divisors (16316515).

212114513 is a wasteful number, since it uses less digits than its factorization.

212114513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16316514.

The product of its digits is 240, while the sum is 20.

The square root of 212114513 is about 14564.1516402432. The cubic root of 212114513 is about 596.3805365637.

Adding to 212114513 its reverse (315411212), we get a palindrome (527525725).

The spelling of 212114513 in words is "two hundred twelve million, one hundred fourteen thousand, five hundred thirteen".

Divisors: 1 13 16316501 212114513