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214568 = 2326821
BaseRepresentation
bin110100011000101000
3101220022222
4310120220
523331233
64333212
71552364
oct643050
9356288
10214568
11137232
12a4208
1376883
14582a4
1543898
hex34628

214568 has 8 divisors (see below), whose sum is σ = 402330. Its totient is φ = 107280.

The previous prime is 214561. The next prime is 214589. The reversal of 214568 is 865412.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 68644 = 382^2 + 262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (214561) by changing a digit.

214568 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13403 + ... + 13418.

2214568 is an apocalyptic number.

It is an amenable number.

214568 is a deficient number, since it is larger than the sum of its proper divisors (187762).

214568 is a wasteful number, since it uses less digits than its factorization.

214568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26827 (or 26823 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 214568 is about 463.2148529570. The cubic root of 214568 is about 59.8671133101.

The spelling of 214568 in words is "two hundred fourteen thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 26821 53642 107284 214568