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13143232223 = 1131151255253
BaseRepresentation
bin11000011110110010…
…11100111011011111
31020220222022101010122
430033121130323133
5203404131412343
610012105025155
7643462426202
oct141731347337
936828271118
1013143232223
1156350149a0
1226697851bb
131315c712b4
148c97b1939
1551dce6068
hex30f65cedf

13143232223 has 16 divisors (see below), whose sum is σ = 14898665472. Its totient is φ = 11486340000.

The previous prime is 13143232181. The next prime is 13143232229. The reversal of 13143232223 is 32223234131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13143232223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13143232192 and 13143232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143232229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76136 + ... + 179117.

It is an arithmetic number, because the mean of its divisors is an integer number (931166592).

Almost surely, 213143232223 is an apocalyptic number.

13143232223 is a deficient number, since it is larger than the sum of its proper divisors (1755433249).

13143232223 is a wasteful number, since it uses less digits than its factorization.

13143232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255446.

The product of its digits is 5184, while the sum is 26.

Adding to 13143232223 its reverse (32223234131), we get a palindrome (45366466354).

The spelling of 13143232223 in words is "thirteen billion, one hundred forty-three million, two hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 11 31 151 341 1661 4681 51491 255253 2807783 7912843 38543203 87041273 423975233 1194839293 13143232223