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13223412423 = 32132693831097
BaseRepresentation
bin11000101000010110…
…10100001011000111
31021010120011221200200
430110023110023013
5204040143144143
610024051341543
7645455102544
oct142413241307
937116157620
1013223412423
1156762a9521
1226905b18b3
1313297656c0
148d62c3bcb
15525d831d3
hex3142d42c7

13223412423 has 48 divisors (see below), whose sum is σ = 20718996480. Its totient is φ = 8078694912.

The previous prime is 13223412407. The next prime is 13223412443. The reversal of 13223412423 is 32421432231.

13223412423 is a `hidden beast` number, since 1 + 3 + 2 + 234 + 1 + 2 + 423 = 666.

It is not a de Polignac number, because 13223412423 - 24 = 13223412407 is a prime.

It is a super-2 number, since 2×132234124232 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223412443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12053611 + ... + 12054707.

It is an arithmetic number, because the mean of its divisors is an integer number (431645760).

Almost surely, 213223412423 is an apocalyptic number.

13223412423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13223412423 is a deficient number, since it is larger than the sum of its proper divisors (7495584057).

13223412423 is a wasteful number, since it uses less digits than its factorization.

13223412423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1765 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 13223412423 its reverse (32421432231), we get a palindrome (45644844654).

The spelling of 13223412423 in words is "thirteen billion, two hundred twenty-three million, four hundred twelve thousand, four hundred twenty-three".

Divisors: 1 3 9 13 39 117 269 383 807 1097 1149 2421 3291 3447 3497 4979 9873 10491 14261 14937 31473 42783 44811 103027 128349 295093 309081 420151 885279 927243 1260453 1339351 2655837 3781359 3836209 4018053 5461963 11508627 12054159 16385889 34525881 49157667 113020619 339061857 1017185571 1469268047 4407804141 13223412423