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BaseRepresentation
bin110101111011011101
3102020000020
4311323131
524032033
64422353
71610001
oct657335
9366006
10220893
11140a62
12a79b9
137970a
145a701
15456b3
hex35edd

220893 has 8 divisors (see below), whose sum is σ = 304800. Its totient is φ = 142128.

The previous prime is 220889. The next prime is 220897. The reversal of 220893 is 398022.

It is an interprime number because it is at equal distance from previous prime (220889) and next prime (220897).

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

It is not a de Polignac number, because 220893 - 22 = 220889 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220897) 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 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (38100).

2220893 is an apocalyptic number.

It is an amenable number.

220893 is a deficient number, since it is larger than the sum of its proper divisors (83907).

220893 is a wasteful number, since it uses less digits than its factorization.

220893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 220893 is about 469.9925531325. The cubic root of 220893 is about 60.4496769798.

The spelling of 220893 in words is "two hundred twenty thousand, eight hundred ninety-three".

Divisors: 1 3 29 87 2539 7617 73631 220893