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212441 = 1091949
BaseRepresentation
bin110011110111011001
3101210102012
4303313121
523244231
64315305
71543235
oct636731
9353365
10212441
11135679
12a2b35
1375908
14575c5
1542e2b
hex33dd9

212441 has 4 divisors (see below), whose sum is σ = 214500. Its totient is φ = 210384.

The previous prime is 212437. The next prime is 212447. The reversal of 212441 is 144212.

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 160000 + 52441 = 400^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 212441 - 22 = 212437 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (212447) 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, 866 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (53625).

2212441 is an apocalyptic number.

It is an amenable number.

212441 is a deficient number, since it is larger than the sum of its proper divisors (2059).

212441 is a wasteful number, since it uses less digits than its factorization.

212441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058.

The product of its digits is 64, while the sum is 14.

The square root of 212441 is about 460.9132239370. The cubic root of 212441 is about 59.6686363002.

Adding to 212441 its reverse (144212), we get a palindrome (356653).

The spelling of 212441 in words is "two hundred twelve thousand, four hundred forty-one", and thus it is an iban number.

Divisors: 1 109 1949 212441