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220873 is a prime number
BaseRepresentation
bin110101111011001001
3102012222111
4311323021
524031443
64422321
71606642
oct657311
9365874
10220873
11140a44
12a79a1
13796c3
145a6c9
154569d
hex35ec9

220873 has 2 divisors, whose sum is σ = 220874. Its totient is φ = 220872.

The previous prime is 220861. The next prime is 220877. The reversal of 220873 is 378022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219024 + 1849 = 468^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 220873 - 25 = 220841 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (220877) 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 as a sum of consecutive naturals, namely, 110436 + 110437.

It is an arithmetic number, because the mean of its divisors is an integer number (110437).

2220873 is an apocalyptic number.

It is an amenable number.

220873 is a deficient number, since it is larger than the sum of its proper divisors (1).

220873 is an equidigital number, since it uses as much as digits as its factorization.

220873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 220873 is about 469.9712757180. The cubic root of 220873 is about 60.4478525217.

Adding to 220873 its reverse (378022), we get a palindrome (598895).

The spelling of 220873 in words is "two hundred twenty thousand, eight hundred seventy-three".