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13244243423 = 431014576673
BaseRepresentation
bin11000101010110101…
…10001110111011111
31021012000101021110012
430111122301313133
5204111011242143
610030114033435
7646130132405
oct142532616737
937160337405
1013244243423
115687037124
12269757887b
131330b7a138
148d8d87475
15527aea418
hex3156b1ddf

13244243423 has 16 divisors (see below), whose sum is σ = 13718433696. Its totient is φ = 12778214400.

The previous prime is 13244243399. The next prime is 13244243443. The reversal of 13244243423 is 32434244231.

It is a cyclic number.

It is not a de Polignac number, because 13244243423 - 216 = 13244177887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13244243423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244243443) 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, 1981415 + ... + 1988087.

It is an arithmetic number, because the mean of its divisors is an integer number (857402106).

Almost surely, 213244243423 is an apocalyptic number.

13244243423 is a deficient number, since it is larger than the sum of its proper divisors (474190273).

13244243423 is a wasteful number, since it uses less digits than its factorization.

13244243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274.

The product of its digits is 55296, while the sum is 32.

Adding to 13244243423 its reverse (32434244231), we get a palindrome (45678487654).

The spelling of 13244243423 in words is "thirteen billion, two hundred forty-four million, two hundred forty-three thousand, four hundred twenty-three".

Divisors: 1 43 101 457 4343 6673 19651 46157 286939 673973 1984751 3049561 28980839 131131123 308005661 13244243423