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6682205525840 = 2451335571806353
BaseRepresentation
bin110000100111101001001…
…1111001001011101010000
3212122210221101121000001122
41201033102133021131100
51333440124103311330
622113432435021412
71256526165543245
oct141172237113520
925583841530048
106682205525840
1121469a88a6259
128bb08113a868
1339618b039990
141915c5ac75cc
15b8c45c335e5
hex613d27c9750

6682205525840 has 80 divisors (see below), whose sum is σ = 16735927613328. Its totient is φ = 2466580881408.

The previous prime is 6682205525837. The next prime is 6682205525857. The reversal of 6682205525840 is 485255022866.

It can be written as a sum of positive squares in 8 ways, for example, as 105791465536 + 6576414060304 = 325256^2 + 2564452^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796104 + ... + 4602456.

Almost surely, 26682205525840 is an apocalyptic number.

It is an amenable number.

6682205525840 is an abundant number, since it is smaller than the sum of its proper divisors (10053722087488).

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

6682205525840 is a wasteful number, since it uses less digits than its factorization.

6682205525840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809936 (or 1809930 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 6682205525840 in words is "six trillion, six hundred eighty-two billion, two hundred five million, five hundred twenty-five thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 3557 7114 14228 17785 28456 35570 46241 56912 71140 92482 142280 184964 231205 284560 369928 462410 739856 924820 1806353 1849640 3612706 3699280 7225412 9031765 14450824 18063530 23482589 28901648 36127060 46965178 72254120 93930356 117412945 144508240 187860712 234825890 375721424 469651780 939303560 1878607120 6425197621 12850395242 25700790484 32125988105 51401580968 64251976210 83527569073 102803161936 128503952420 167055138146 257007904840 334110276292 417637845365 514015809680 668220552584 835275690730 1336441105168 1670551381460 3341102762920 6682205525840