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13320311312988 = 22331311204178191
BaseRepresentation
bin1100000111010110000001…
…1011001001001001011100
31202011102001101202011102000
43001311200123021021130
53221214444144003423
644155133323402300
72543234506006011
oct301654033111134
952142041664360
1013320311312988
114276126527079
1215b1695383390
1375813b820b04
143409c6929708
1518175a0a7843
hexc1d606c925c

13320311312988 has 96 divisors (see below), whose sum is σ = 34801094845440. Its totient is φ = 4405787568000.

The previous prime is 13320311312951. The next prime is 13320311312993. The reversal of 13320311312988 is 88921311302331.

13320311312988 is a `hidden beast` number, since 1 + 3 + 320 + 3 + 1 + 1 + 31 + 298 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170316973 + ... + 170395163.

It is an arithmetic number, because the mean of its divisors is an integer number (362511404640).

Almost surely, 213320311312988 is an apocalyptic number.

13320311312988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320311312988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17400547422720).

13320311312988 is an abundant number, since it is smaller than the sum of its proper divisors (21480783532452).

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

13320311312988 is a wasteful number, since it uses less digits than its factorization.

13320311312988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90376 (or 90368 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 13320311312988 in words is "thirteen trillion, three hundred twenty billion, three hundred eleven million, three hundred twelve thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 131 262 393 524 786 1179 1572 2358 3537 4716 7074 12041 14148 24082 36123 48164 72246 78191 108369 144492 156382 216738 234573 312764 325107 433476 469146 650214 703719 938292 1300428 1407438 1577371 2111157 2814876 3154742 4222314 4732113 6309484 8444628 9464226 10243021 14196339 18928452 20486042 28392678 30729063 40972084 42589017 56785356 61458126 85178034 92187189 122916252 170356068 184374378 276561567 368748756 553123134 941497831 1106246268 1882995662 2824493493 3765991324 5648986986 8473480479 11297973972 16946960958 25420441437 33893921916 50840882874 101681765748 123336215861 246672431722 370008647583 493344863444 740017295166 1110025942749 1480034590332 2220051885498 3330077828247 4440103770996 6660155656494 13320311312988