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223305049 = 1120300459
BaseRepresentation
bin11010100111101…
…01110101011001
3120120012001221101
431103311311121
5424131230144
634054111401
75351030062
oct1523656531
9516161841
10223305049
11105060430
126294b561
1337356b86
142192b569
151490e6d4
hexd4f5d59

223305049 has 4 divisors (see below), whose sum is σ = 243605520. Its totient is φ = 203004580.

The previous prime is 223305031. The next prime is 223305067. The reversal of 223305049 is 940503322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (223305031) and next prime (223305067).

It is a cyclic number.

It is not a de Polignac number, because 223305049 - 211 = 223303001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223305449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150219 + ... + 10150240.

It is an arithmetic number, because the mean of its divisors is an integer number (60901380).

Almost surely, 2223305049 is an apocalyptic number.

It is an amenable number.

223305049 is a deficient number, since it is larger than the sum of its proper divisors (20300471).

223305049 is a wasteful number, since it uses less digits than its factorization.

223305049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300470.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 223305049 is about 14943.3948284853. The cubic root of 223305049 is about 606.6890840580.

The spelling of 223305049 in words is "two hundred twenty-three million, three hundred five thousand, forty-nine".

Divisors: 1 11 20300459 223305049