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12230812503565 = 513811873945701
BaseRepresentation
bin1011000111111011010100…
…1111000000111000001101
31121022020212100112011000121
42301332311033000320031
53100342201000103230
642002431355024541
72401434635636305
oct261766517007015
947266770464017
1012230812503565
11399607088aa87
1214564b643b151
136a948c513c96
14303d8ddaa605
151632414b577a
hexb1fb53c0e0d

12230812503565 has 16 divisors (see below), whose sum is σ = 14695460084016. Its totient is φ = 9772334208000.

The previous prime is 12230812503563. The next prime is 12230812503677. The reversal of 12230812503565 is 56530521803221.

It can be written as a sum of positive squares in 8 ways, for example, as 4401012383881 + 7829800119684 = 2097859^2 + 2798178^2 .

It is not a de Polignac number, because 12230812503565 - 21 = 12230812503563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230812503563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12460215 + ... + 13405915.

It is an arithmetic number, because the mean of its divisors is an integer number (918466255251).

Almost surely, 212230812503565 is an apocalyptic number.

It is an amenable number.

12230812503565 is a deficient number, since it is larger than the sum of its proper divisors (2464647580451).

12230812503565 is a wasteful number, since it uses less digits than its factorization.

12230812503565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948960.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 12230812503565 in words is "twelve trillion, two hundred thirty billion, eight hundred twelve million, five hundred three thousand, five hundred sixty-five".

Divisors: 1 5 1381 1873 6905 9365 945701 2586613 4728505 12933065 1306013081 1771297973 6530065405 8856489865 2446162500713 12230812503565