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22213143223 = 34429645187
BaseRepresentation
bin10100101100000000…
…011010101010110111
32010100001221121000021
4110230000122222313
5330443031040343
614112104430011
71414314413335
oct245400325267
963301847007
1022213143223
119469816307
12437b178307
13213005b73b
14110a1c4b55
158a01d20ed
hex52c01aab7

22213143223 has 4 divisors (see below), whose sum is σ = 22213822840. Its totient is φ = 22212463608.

The previous prime is 22213143191. The next prime is 22213143233. The reversal of 22213143223 is 32234131222.

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 22213143223 - 25 = 22213143191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213143233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288165 + ... + 357022.

It is an arithmetic number, because the mean of its divisors is an integer number (5553455710).

Almost surely, 222213143223 is an apocalyptic number.

22213143223 is a deficient number, since it is larger than the sum of its proper divisors (679617).

22213143223 is an equidigital number, since it uses as much as digits as its factorization.

22213143223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679616.

The product of its digits is 3456, while the sum is 25.

Adding to 22213143223 its reverse (32234131222), we get a palindrome (54447274445).

The spelling of 22213143223 in words is "twenty-two billion, two hundred thirteen million, one hundred forty-three thousand, two hundred twenty-three".

Divisors: 1 34429 645187 22213143223