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223413213 = 3972712833
BaseRepresentation
bin11010101000100…
…00001111011101
3120120101120022110
431110100033131
5424143210323
634100304233
75351660322
oct1524201735
9516346273
10223413213
11105124721
12629a2079
133739418a
1421958b49
1514931793
hexd5103dd

223413213 has 16 divisors (see below), whose sum is σ = 302172416. Its totient is φ = 146810880.

The previous prime is 223413181. The next prime is 223413217. The reversal of 223413213 is 312314322.

223413213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223413213 - 25 = 223413181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 223413213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223413217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77445 + ... + 80277.

It is an arithmetic number, because the mean of its divisors is an integer number (18885776).

Almost surely, 2223413213 is an apocalyptic number.

It is an amenable number.

223413213 is a deficient number, since it is larger than the sum of its proper divisors (78759203).

223413213 is a wasteful number, since it uses less digits than its factorization.

223413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204.

The product of its digits is 864, while the sum is 21.

The square root of 223413213 is about 14947.0135144115. The cubic root of 223413213 is about 606.7870238135.

Adding to 223413213 its reverse (312314322), we get a palindrome (535727535).

The spelling of 223413213 in words is "two hundred twenty-three million, four hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 97 271 291 813 2833 8499 26287 78861 274801 767743 824403 2303229 74471071 223413213