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2208223 = 3171233
BaseRepresentation
bin1000011011000111011111
311011012010001
420123013133
51031130343
6115155131
724524653
oct10330737
94135101
102208223
111279086
128a5aa7
135c4154
14416a63
152d944d
hex21b1df

2208223 has 4 divisors (see below), whose sum is σ = 2279488. Its totient is φ = 2136960.

The previous prime is 2208203. The next prime is 2208229. The reversal of 2208223 is 3228022.

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 2208223 - 213 = 2200031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2208223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208229) 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, 35586 + ... + 35647.

It is an arithmetic number, because the mean of its divisors is an integer number (569872).

22208223 is an apocalyptic number.

2208223 is a deficient number, since it is larger than the sum of its proper divisors (71265).

2208223 is an equidigital number, since it uses as much as digits as its factorization.

2208223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71264.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2208223 is about 1486.0090847636. The cubic root of 2208223 is about 130.2209850846.

The spelling of 2208223 in words is "two million, two hundred eight thousand, two hundred twenty-three".

Divisors: 1 31 71233 2208223