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23223323221 = 729114400607
BaseRepresentation
bin10101101000001101…
…111100101001010101
32012221110210001110021
4111220031330221111
5340030132320341
614400232225141
71451331663460
oct255015745125
965843701407
1023223323221
119937a6250a
12460153b1b1
132261421397
1411a44222d7
1590dc249d1
hex56837ca55

23223323221 has 8 divisors (see below), whose sum is σ = 27456145920. Its totient is φ = 19219301808.

The previous prime is 23223323209. The next prime is 23223323281. The reversal of 23223323221 is 12232332232.

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

It is not a de Polignac number, because 23223323221 - 213 = 23223315029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223323281) 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, 57200101 + ... + 57200506.

It is an arithmetic number, because the mean of its divisors is an integer number (3432018240).

Almost surely, 223223323221 is an apocalyptic number.

It is an amenable number.

23223323221 is a deficient number, since it is larger than the sum of its proper divisors (4232822699).

23223323221 is a wasteful number, since it uses less digits than its factorization.

23223323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114400643.

The product of its digits is 5184, while the sum is 25.

Adding to 23223323221 its reverse (12232332232), we get a palindrome (35455655453).

The spelling of 23223323221 in words is "twenty-three billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 7 29 203 114400607 800804249 3317617603 23223323221