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6838180297856 = 27832194329333
BaseRepresentation
bin110001110000010001101…
…0011101011110010000000
3220012201112112122101022122
41203200203103223302000
51344014043124012411
622313225555423412
71304020324331015
oct143404323536200
926181475571278
106838180297856
1121a7068564016
129253508b4b68
133a7ab7390c9b
14198d80b9b70c
15bcd241159db
hex638234ebc80

6838180297856 has 64 divisors (see below), whose sum is σ = 13788167440320. Its totient is φ = 3377627200512.

The previous prime is 6838180297847. The next prime is 6838180297891. The reversal of 6838180297856 is 6587920818386.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 6838180297856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233107766 + ... + 233137098.

It is an arithmetic number, because the mean of its divisors is an integer number (215440116255).

Almost surely, 26838180297856 is an apocalyptic number.

It is an amenable number.

6838180297856 is an abundant number, since it is smaller than the sum of its proper divisors (6949987142464).

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

6838180297856 is a wasteful number, since it uses less digits than its factorization.

6838180297856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51373 (or 51361 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 71.

The spelling of 6838180297856 in words is "six trillion, eight hundred thirty-eight billion, one hundred eighty million, two hundred ninety-seven thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 16 32 64 83 128 166 332 664 1328 2656 5312 10624 21943 29333 43886 58666 87772 117332 175544 234664 351088 469328 702176 938656 1404352 1821269 1877312 2434639 2808704 3642538 3754624 4869278 7285076 9738556 14570152 19477112 29140304 38954224 58280608 77908448 116561216 155816896 233122432 311633792 643654019 1287308038 2574616076 5149232152 10298464304 20596928608 41193857216 53423283577 82387714432 106846567154 213693134308 427386268616 854772537232 1709545074464 3419090148928 6838180297856