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214717 = 415237
BaseRepresentation
bin110100011010111101
3101220112111
4310122331
523332332
64334021
71552666
oct643275
9356474
10214717
11137358
12a4311
1376969
145836d
1543947
hex346bd

214717 has 4 divisors (see below), whose sum is σ = 219996. Its totient is φ = 209440.

The previous prime is 214691. The next prime is 214723. The reversal of 214717 is 717412.

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 89401 + 125316 = 299^2 + 354^2 .

It is a cyclic number.

It is not a de Polignac number, because 214717 - 27 = 214589 is a prime.

It is a super-2 number, since 2×2147172 = 92206780178, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578 + ... + 2659.

It is an arithmetic number, because the mean of its divisors is an integer number (54999).

2214717 is an apocalyptic number.

It is an amenable number.

214717 is a deficient number, since it is larger than the sum of its proper divisors (5279).

214717 is an equidigital number, since it uses as much as digits as its factorization.

214717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278.

The product of its digits is 392, while the sum is 22.

The square root of 214717 is about 463.3756575393. The cubic root of 214717 is about 59.8809677151.

The spelling of 214717 in words is "two hundred fourteen thousand, seven hundred seventeen", and thus it is an iban number.

Divisors: 1 41 5237 214717