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1222320223 = 10926334259
BaseRepresentation
bin100100011011011…
…0010000001011111
310011012000022010101
41020312302001133
510000403221343
6321142321531
742201356545
oct11066620137
93135008111
101222320223
11577a71303
122a14292a7
1316630aa07
14b849dd95
1572498e4d
hex48db205f

1222320223 has 8 divisors (see below), whose sum is σ = 1234292400. Its totient is φ = 1210362048.

The previous prime is 1222320221. The next prime is 1222320227. The reversal of 1222320223 is 3220232221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222320223 - 21 = 1222320221 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 1222320223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222320221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284868 + ... + 289126.

It is an arithmetic number, because the mean of its divisors is an integer number (154286550).

Almost surely, 21222320223 is an apocalyptic number.

1222320223 is a deficient number, since it is larger than the sum of its proper divisors (11972177).

1222320223 is a wasteful number, since it uses less digits than its factorization.

1222320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1222320223 is about 34961.6965120401. The cubic root of 1222320223 is about 1069.2066856766.

Adding to 1222320223 its reverse (3220232221), we get a palindrome (4442552444).

The spelling of 1222320223 in words is "one billion, two hundred twenty-two million, three hundred twenty thousand, two hundred twenty-three".

Divisors: 1 109 2633 4259 286997 464231 11213947 1222320223