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23213202223 = 99487233329
BaseRepresentation
bin10101100111100111…
…010101101100101111
32012220202201212001111
4111213213111230233
5340020034432343
614355231252451
71451146651261
oct254747255457
965822655044
1023213202223
11993227a452
1245ba07a127
13225c2b9723
1411a2d49b31
1590cdc5c9d
hex5679d5b2f

23213202223 has 4 divisors (see below), whose sum is σ = 23213535040. Its totient is φ = 23212869408.

The previous prime is 23213202217. The next prime is 23213202251. The reversal of 23213202223 is 32220231232.

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 23213202223 - 213 = 23213194031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23213202194 and 23213202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213202263) 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, 17178 + ... + 216151.

It is an arithmetic number, because the mean of its divisors is an integer number (5803383760).

Almost surely, 223213202223 is an apocalyptic number.

23213202223 is a deficient number, since it is larger than the sum of its proper divisors (332817).

23213202223 is an equidigital number, since it uses as much as digits as its factorization.

23213202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332816.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23213202223 its reverse (32220231232), we get a palindrome (55433433455).

The spelling of 23213202223 in words is "twenty-three billion, two hundred thirteen million, two hundred two thousand, two hundred twenty-three".

Divisors: 1 99487 233329 23213202223