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216214 = 2108107
BaseRepresentation
bin110100110010010110
3101222120221
4310302112
523404324
64344554
71560235
oct646226
9358527
10216214
11138499
12a515a
137754b
1458b1c
15440e4
hex34c96

216214 has 4 divisors (see below), whose sum is σ = 324324. Its totient is φ = 108106.

The previous prime is 216211. The next prime is 216217. The reversal of 216214 is 412612.

216214 is nontrivially palindromic in base 12.

216214 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 an interprime number because it is at equal distance from previous prime (216211) and next prime (216217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54052 + ... + 54055.

It is an arithmetic number, because the mean of its divisors is an integer number (81081).

2216214 is an apocalyptic number.

216214 is a deficient number, since it is larger than the sum of its proper divisors (108110).

216214 is a wasteful number, since it uses less digits than its factorization.

216214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108109.

The product of its digits is 96, while the sum is 16.

The square root of 216214 is about 464.9881718926. The cubic root of 216214 is about 60.0198082746.

Adding to 216214 its reverse (412612), we get a palindrome (628826).

The spelling of 216214 in words is "two hundred sixteen thousand, two hundred fourteen".

Divisors: 1 2 108107 216214