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13206888855 = 3251764326849
BaseRepresentation
bin11000100110011000…
…10010000110010111
31021002102002110121200
430103030102012113
5204021430420410
610022301243543
7645164463066
oct142314220627
937072073550
1013206888855
115667a43086
122686b635b3
1313261cb744
148d40221dd
155246bc3c0
hex313312197

13206888855 has 48 divisors (see below), whose sum is σ = 24277125600. Its totient is φ = 6618783744.

The previous prime is 13206888839. The next prime is 13206888883. The reversal of 13206888855 is 55888860231.

It is a happy number.

It is not a de Polignac number, because 13206888855 - 24 = 13206888839 is a prime.

It is a super-2 number, since 2×132068888552 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 478471 + ... + 505319.

It is an arithmetic number, because the mean of its divisors is an integer number (505773450).

Almost surely, 213206888855 is an apocalyptic number.

13206888855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13206888855 is a deficient number, since it is larger than the sum of its proper divisors (11070236745).

13206888855 is a wasteful number, since it uses less digits than its factorization.

13206888855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27520 (or 27517 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 13206888855 in words is "thirteen billion, two hundred six million, eight hundred eighty-eight thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 643 765 1929 3215 5787 9645 10931 26849 28935 32793 54655 80547 98379 134245 163965 241641 402735 456433 491895 1208205 1369299 2282165 4107897 6846495 17263907 20539485 51791721 86319535 155375163 258958605 293486419 776875815 880459257 1467432095 2641377771 4402296285 13206888855