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23029211865 = 3511223953089
BaseRepresentation
bin10101011100101001…
…011110001011011001
32012102221112011201210
4111130221132023121
5334130434234430
614325055533333
71443454033242
oct253451361331
965387464653
1023029211865
119848431800
12456852a249
1322301494aa
141186733cc9
158ebb802b0
hex55ca5e2d9

23029211865 has 48 divisors (see below), whose sum is σ = 40671187200. Its totient is φ = 11118750720.

The previous prime is 23029211851. The next prime is 23029211867. The reversal of 23029211865 is 56811292032.

It is not a de Polignac number, because 23029211865 - 28 = 23029211609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23029211867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 407241 + ... + 460329.

It is an arithmetic number, because the mean of its divisors is an integer number (847316400).

Almost surely, 223029211865 is an apocalyptic number.

It is an amenable number.

23029211865 is a deficient number, since it is larger than the sum of its proper divisors (17641975335).

23029211865 is a wasteful number, since it uses less digits than its factorization.

23029211865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53358 (or 53347 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 23029211865 in words is "twenty-three billion, twenty-nine million, two hundred eleven thousand, eight hundred sixty-five".

Divisors: 1 3 5 11 15 33 55 121 165 239 363 605 717 1195 1815 2629 3585 7887 13145 28919 39435 53089 86757 144595 159267 265445 433785 583979 796335 1751937 2919895 6423769 8759685 12688271 19271307 32118845 38064813 63441355 96356535 139570981 190324065 418712943 697854905 1535280791 2093564715 4605842373 7676403955 23029211865