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6855311129960 = 2351736727469591
BaseRepresentation
bin110001111000010000001…
…1000100111110101101000
3220021100202102022211010202
41203300200120213311220
51344304134122124320
622325141512531332
71305165000106646
oct143604030476550
926240672284122
106855311129960
1122033594627a7
129287319b0b48
133a95b7501827
14199b27db6196
15bd4c8032b75
hex63c20627d68

6855311129960 has 64 divisors (see below), whose sum is σ = 16376271966720. Its totient is φ = 2573790704640.

The previous prime is 6855311129959. The next prime is 6855311129983. The reversal of 6855311129960 is 699211135586.

It is a junction number, because it is equal to n+sod(n) for n = 6855311129896 and 6855311129905.

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 15 ways as a sum of consecutive naturals, for example, 13485236 + ... + 13984355.

It is an arithmetic number, because the mean of its divisors is an integer number (255879249480).

Almost surely, 26855311129960 is an apocalyptic number.

It is an amenable number.

6855311129960 is an abundant number, since it is smaller than the sum of its proper divisors (9520960836760).

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

6855311129960 is a wasteful number, since it uses less digits than its factorization.

6855311129960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27469986 (or 27469982 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 6855311129960 in words is "six trillion, eight hundred fifty-five billion, three hundred eleven million, one hundred twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 367 680 734 1468 1835 2936 3670 6239 7340 12478 14680 24956 31195 49912 62390 124780 249560 27469591 54939182 109878364 137347955 219756728 274695910 466983047 549391820 933966094 1098783640 1867932188 2334915235 3735864376 4669830470 9339660940 10081339897 18679321880 20162679794 40325359588 50406699485 80650719176 100813398970 171382778249 201626797940 342765556498 403253595880 685531112996 856913891245 1371062225992 1713827782490 3427655564980 6855311129960