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214481 is a prime number
BaseRepresentation
bin110100010111010001
3101220012202
4310113101
523330411
64332545
71552211
oct642721
9356182
10214481
11137163
12a4155
1376817
1458241
154383b
hex345d1

214481 has 2 divisors, whose sum is σ = 214482. Its totient is φ = 214480.

The previous prime is 214469. The next prime is 214483. The reversal of 214481 is 184412.

214481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180625 + 33856 = 425^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 214481 - 214 = 198097 is a prime.

It is a super-2 number, since 2×2144812 = 92004198722, which contains 22 as substring.

Together with 214483, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214481.

It is not a weakly prime, because it can be changed into another prime (214483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107240 + 107241.

It is an arithmetic number, because the mean of its divisors is an integer number (107241).

2214481 is an apocalyptic number.

It is an amenable number.

214481 is a deficient number, since it is larger than the sum of its proper divisors (1).

214481 is an equidigital number, since it uses as much as digits as its factorization.

214481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 20.

The square root of 214481 is about 463.1209345301. The cubic root of 214481 is about 59.8590208593.

Adding to 214481 its reverse (184412), we get a palindrome (398893).

The spelling of 214481 in words is "two hundred fourteen thousand, four hundred eighty-one".