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13388816678960 = 245238370230889
BaseRepresentation
bin1100001011010101001110…
…1010011000000000110000
31202101221212122200022211202
43002311103222120000300
53223330244032211320
644250423143230332
72551211234010032
oct302652352300060
952357778608752
1013388816678960
1142a218aa73508
121602a137483a8
13761738404718
14344044c37c52
1518341937db75
hexc2d53a98030

13388816678960 has 40 divisors (see below), whose sum is σ = 31142062167360. Its totient is φ = 5353279206912.

The previous prime is 13388816678957. The next prime is 13388816679131. The reversal of 13388816678960 is 6987661888331.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34924805 + ... + 35306084.

It is an arithmetic number, because the mean of its divisors is an integer number (778551554184).

Almost surely, 213388816678960 is an apocalyptic number.

13388816678960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13388816678960 is an abundant number, since it is smaller than the sum of its proper divisors (17753245488400).

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

13388816678960 is a wasteful number, since it uses less digits than its factorization.

13388816678960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70233285 (or 70233279 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 74.

The spelling of 13388816678960 in words is "thirteen trillion, three hundred eighty-eight billion, eight hundred sixteen million, six hundred seventy-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2383 4766 9532 11915 19064 23830 38128 47660 95320 190640 70230889 140461778 280923556 351154445 561847112 702308890 1123694224 1404617780 2809235560 5618471120 167360208487 334720416974 669440833948 836801042435 1338881667896 1673602084870 2677763335792 3347204169740 6694408339480 13388816678960