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13418224215 = 3511227192
BaseRepresentation
bin11000111111100100…
…11101101001010111
31021122010202102020020
430133302131221113
5204440031133330
610055251040223
7653342011134
oct143762355127
937563672206
1013418224215
115766268500
1227258a0073
13135ac24356
1491411558b
15538015210
hex31fc9da57

13418224215 has 36 divisors (see below), whose sum is σ = 23607013752. Its totient is φ = 6503412960.

The previous prime is 13418224189. The next prime is 13418224231. The reversal of 13418224215 is 51242281431.

It is not a de Polignac number, because 13418224215 - 210 = 13418223191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4933626 + ... + 4936344.

It is an arithmetic number, because the mean of its divisors is an integer number (655750382).

Almost surely, 213418224215 is an apocalyptic number.

13418224215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13418224215 is a deficient number, since it is larger than the sum of its proper divisors (10188789537).

13418224215 is an frugal number, since it uses more digits than its factorization.

13418224215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468 (or 2738 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

Multiplying 13418224215 by its product of digits (15360), we get a square (206103923942400 = 143563202).

The spelling of 13418224215 in words is "thirteen billion, four hundred eighteen million, two hundred twenty-four thousand, two hundred fifteen".

Divisors: 1 3 5 11 15 33 55 121 165 363 605 1815 2719 8157 13595 29909 40785 89727 149545 328999 448635 986997 1644995 4934985 7392961 22178883 36964805 81322571 110894415 243967713 406612855 894548281 1219838565 2683644843 4472741405 13418224215