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13227201405 = 32511194332707
BaseRepresentation
bin11000101000110011…
…10001001101111101
31021010211022110012100
430110121301031331
5204042130421110
610024304455313
7645532233255
oct142431611575
937124273170
1013227201405
115678457210
12269191a539
13132a4911c2
148d69cc965
15526380bc0
hex31467137d

13227201405 has 96 divisors (see below), whose sum is σ = 26940925440. Its totient is φ = 5934176640.

The previous prime is 13227201401. The next prime is 13227201431. The reversal of 13227201405 is 50410272231.

13227201405 is a `hidden beast` number, since 1 + 32 + 27 + 201 + 405 = 666.

It is not a de Polignac number, because 13227201405 - 22 = 13227201401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13227201401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 388062 + ... + 420768.

It is an arithmetic number, because the mean of its divisors is an integer number (280634640).

Almost surely, 213227201405 is an apocalyptic number.

13227201405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13227201405 is an abundant number, since it is smaller than the sum of its proper divisors (13713724035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13227201405 is a wasteful number, since it uses less digits than its factorization.

13227201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32791 (or 32788 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 13227201405 its reverse (50410272231), we get a palindrome (63637473636).

The spelling of 13227201405 in words is "thirteen billion, two hundred twenty-seven million, two hundred one thousand, four hundred five".

Divisors: 1 3 5 9 11 15 19 33 43 45 55 57 95 99 129 165 171 209 215 285 387 473 495 627 645 817 855 1045 1419 1881 1935 2365 2451 3135 4085 4257 7095 7353 8987 9405 12255 21285 26961 32707 36765 44935 80883 98121 134805 163535 294363 359777 404415 490605 621433 1079331 1406401 1471815 1798885 1864299 3107165 3237993 4219203 5396655 5592897 6835763 7032005 9321495 12657609 15470411 16189965 20507289 21096015 26721619 27964485 34178815 46411233 61521867 63288045 77352055 80164857 102536445 133608095 139233699 232056165 240494571 293937809 307609335 400824285 696168495 881813427 1202472855 1469689045 2645440281 4409067135 13227201405