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13423011303 = 313937367321
BaseRepresentation
bin11001000000001001…
…01110010111100111
31021122110202121212210
430200010232113213
5204442242330203
610055541414503
7653430466512
oct144004562747
937573677783
1013423011303
115768a38079
12272740a433
13135bc0c250
149149ddd79
1553865d803
hex32012e5e7

13423011303 has 16 divisors (see below), whose sum is σ = 19294690016. Its totient is φ = 8251476480.

The previous prime is 13423011289. The next prime is 13423011307. The reversal of 13423011303 is 30311032431.

It is not a de Polignac number, because 13423011303 - 28 = 13423011047 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 13423011303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423011307) 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, 147118 + ... + 220203.

It is an arithmetic number, because the mean of its divisors is an integer number (1205918126).

Almost surely, 213423011303 is an apocalyptic number.

13423011303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13423011303 is a deficient number, since it is larger than the sum of its proper divisors (5871678713).

13423011303 is a wasteful number, since it uses less digits than its factorization.

13423011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368274.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13423011303 its reverse (30311032431), we get a palindrome (43734043734).

The spelling of 13423011303 in words is "thirteen billion, four hundred twenty-three million, eleven thousand, three hundred three".

Divisors: 1 3 13 39 937 2811 12181 36543 367321 1101963 4775173 14325519 344179777 1032539331 4474337101 13423011303