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23038764791 = 731510720789
BaseRepresentation
bin10101011101001101…
…111010011011110111
32012110121111111212212
4111131031322123313
5334140410433131
614330040404035
71443631161320
oct253515723367
965417444785
1023038764791
119852866a89
12456b77661b
132232112703
141187add447
158ec91aa2b
hex55d37a6f7

23038764791 has 16 divisors (see below), whose sum is σ = 27186001920. Its totient is φ = 19105835040.

The previous prime is 23038764779. The next prime is 23038764817. The reversal of 23038764791 is 19746783032.

It is a cyclic number.

It is not a de Polignac number, because 23038764791 - 218 = 23038502647 is a prime.

It is a super-3 number, since 3×230387647913 (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23038764491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097825 + ... + 1118613.

It is an arithmetic number, because the mean of its divisors is an integer number (1699125120).

Almost surely, 223038764791 is an apocalyptic number.

23038764791 is a deficient number, since it is larger than the sum of its proper divisors (4147237129).

23038764791 is a wasteful number, since it uses less digits than its factorization.

23038764791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25934.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 23038764791 in words is "twenty-three billion, thirty-eight million, seven hundred sixty-four thousand, seven hundred ninety-one".

Divisors: 1 7 31 217 5107 20789 35749 145523 158317 644459 1108219 4511213 106169423 743185961 3291252113 23038764791