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221714 = 2176521
BaseRepresentation
bin110110001000010010
3102021010122
4312020102
524043324
64430242
71612253
oct661022
9367118
10221714
11141639
12a8382
1379bbc
145ab2a
1545a5e
hex36212

221714 has 8 divisors (see below), whose sum is σ = 352188. Its totient is φ = 104320.

The previous prime is 221713. The next prime is 221717. The reversal of 221714 is 417122.

221714 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 187489 + 34225 = 433^2 + 185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 221692 and 221701.

It is not an unprimeable number, because it can be changed into a prime (221713) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3227 + ... + 3294.

2221714 is an apocalyptic number.

221714 is a deficient number, since it is larger than the sum of its proper divisors (130474).

221714 is a wasteful number, since it uses less digits than its factorization.

221714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6540.

The product of its digits is 112, while the sum is 17.

The square root of 221714 is about 470.8651611661. The cubic root of 221714 is about 60.5244761289.

Adding to 221714 its reverse (417122), we get a palindrome (638836).

The spelling of 221714 in words is "two hundred twenty-one thousand, seven hundred fourteen", and thus it is an iban number.

Divisors: 1 2 17 34 6521 13042 110857 221714