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214311 = 371437
BaseRepresentation
bin110100010100100111
3101212222110
4310110213
523324221
64332103
71551546
oct642447
9355873
10214311
11137019
12a4033
1376716
145815d
1543776
hex34527

214311 has 4 divisors (see below), whose sum is σ = 285752. Its totient is φ = 142872.

The previous prime is 214309. The next prime is 214351. The reversal of 214311 is 113412.

It is a happy number.

214311 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 is not a de Polignac number, because 214311 - 21 = 214309 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214351) 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, 35716 + ... + 35721.

It is an arithmetic number, because the mean of its divisors is an integer number (71438).

2214311 is an apocalyptic number.

214311 is a deficient number, since it is larger than the sum of its proper divisors (71441).

214311 is an equidigital number, since it uses as much as digits as its factorization.

214311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71440.

The product of its digits is 24, while the sum is 12.

The square root of 214311 is about 462.9373607736. The cubic root of 214311 is about 59.8432017063.

Adding to 214311 its reverse (113412), we get a palindrome (327723).

It can be divided in two parts, 214 and 311, that added together give a palindrome (525).

The spelling of 214311 in words is "two hundred fourteen thousand, three hundred eleven", and thus it is an iban number.

Divisors: 1 3 71437 214311