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23213331132 = 2236131712201
BaseRepresentation
bin10101100111100111…
…110101001010111100
32012220202222101212220
4111213213311022330
5340020103044012
614355234125340
71451151026145
oct254747651274
965822871786
1023213331132
119932358292
1245ba120850
13225c3332c4
1411a2d80acc
1590cdee08c
hex5679f52bc

23213331132 has 24 divisors (see below), whose sum is σ = 55052382672. Its totient is φ = 7610928000.

The previous prime is 23213331109. The next prime is 23213331157. The reversal of 23213331132 is 23113331232.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15855369 + ... + 15856832.

It is an arithmetic number, because the mean of its divisors is an integer number (2293849278).

Almost surely, 223213331132 is an apocalyptic number.

It is an amenable number.

23213331132 is an abundant number, since it is smaller than the sum of its proper divisors (31839051540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23213331132 is a wasteful number, since it uses less digits than its factorization.

23213331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31712269 (or 31712267 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 23213331132 its reverse (23113331232), we get a palindrome (46326662364).

The spelling of 23213331132 in words is "twenty-three billion, two hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 31712201 63424402 95136603 126848804 190273206 380546412 1934444261 3868888522 5803332783 7737777044 11606665566 23213331132