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220027 = 613607
BaseRepresentation
bin110101101101111011
3102011211011
4311231323
524020102
64414351
71604323
oct655573
9364734
10220027
11140345
12a73b7
13791c2
145a283
15452d7
hex35b7b

220027 has 4 divisors (see below), whose sum is σ = 223696. Its totient is φ = 216360.

The previous prime is 220021. The next prime is 220057. The reversal of 220027 is 720022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220027 - 23 = 220019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 219989 and 220016.

It is not an unprimeable number, because it can be changed into a prime (220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1743 + ... + 1864.

It is an arithmetic number, because the mean of its divisors is an integer number (55924).

2220027 is an apocalyptic number.

220027 is a deficient number, since it is larger than the sum of its proper divisors (3669).

220027 is an equidigital number, since it uses as much as digits as its factorization.

220027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 220027 is about 469.0703571960. The cubic root of 220027 is about 60.3705768713.

Adding to 220027 its reverse (720022), we get a palindrome (940049).

The spelling of 220027 in words is "two hundred twenty thousand, twenty-seven", and thus it is an iban number.

Divisors: 1 61 3607 220027