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23388112223 = 73147297503
BaseRepresentation
bin10101110010000010…
…100100010101011111
32020100221212012110122
4111302002210111133
5340344324042343
614424440225155
71455402450050
oct256202442537
966327765418
1023388112223
119a11a85973
12464876b1bb
1322895ca878
1411bc27a727
1591d426068
hex5720a455f

23388112223 has 48 divisors (see below), whose sum is σ = 28538302464. Its totient is φ = 18754398720.

The previous prime is 23388112211. The next prime is 23388112229. The reversal of 23388112223 is 32221188332.

It is not a de Polignac number, because 23388112223 - 24 = 23388112207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23388112229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46496990 + ... + 46497492.

It is an arithmetic number, because the mean of its divisors is an integer number (594547968).

Almost surely, 223388112223 is an apocalyptic number.

23388112223 is a deficient number, since it is larger than the sum of its proper divisors (5150190241).

23388112223 is an equidigital number, since it uses as much as digits as its factorization.

23388112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 685 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The spelling of 23388112223 in words is "twenty-three billion, three hundred eighty-eight million, one hundred twelve thousand, two hundred twenty-three".

Divisors: 1 7 31 47 97 217 329 503 679 1457 2209 3007 3521 4559 10199 15463 15593 21049 23641 31913 48791 68479 109151 141329 165487 214273 341537 479353 732871 989303 1111127 1499911 1512521 2293177 5130097 6642463 7777889 10587647 16052239 34444937 46497241 71088487 107779319 241114559 497619409 754455233 3341158889 23388112223