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13220041023 = 387287849
BaseRepresentation
bin11000100111111100…
…11101000100111111
31021010022211200000000
430103332131010333
5204033312303043
610023451205343
7645414331440
oct142376350477
937108750000
1013220041023
115674406542
12268b446853
131328b54ca7
148d5a872c7
155259192d3
hex313f9d13f

13220041023 has 36 divisors (see below), whose sum is σ = 22661854800. Its totient is φ = 7554282912.

The previous prime is 13220041001. The next prime is 13220041057. The reversal of 13220041023 is 32014002231.

13220041023 is a `hidden beast` number, since 1 + 32 + 200 + 410 + 23 = 666.

It is not a de Polignac number, because 13220041023 - 25 = 13220040991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220040987 and 13220041005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220041063) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97998 + ... + 189851.

Almost surely, 213220041023 is an apocalyptic number.

13220041023 is a deficient number, since it is larger than the sum of its proper divisors (9441813777).

13220041023 is an frugal number, since it uses more digits than its factorization.

13220041023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287880 (or 287859 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13220041023 its reverse (32014002231), we get a palindrome (45234043254).

The spelling of 13220041023 in words is "thirteen billion, two hundred twenty million, forty-one thousand, twenty-three".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 729 1701 2187 5103 6561 15309 45927 287849 863547 2014943 2590641 6044829 7771923 18134487 23315769 54403461 69947307 163210383 209841921 489631149 629525763 1468893447 1888577289 4406680341 13220041023