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6715255220212 = 22711127433396479
BaseRepresentation
bin110000110111000010001…
…1001101110011111110100
3212202222020200102102122011
41201232010121232133310
51340010320314021322
622140540132414004
71262106166400320
oct141560431563764
925688220372564
106715255220212
112159a18561860
12905565477304
13399327195556
1419303d192980
15b9a2c46a677
hex61b8466e7f4

6715255220212 has 96 divisors (see below), whose sum is σ = 14800972677120. Its totient is φ = 2589730859520.

The previous prime is 6715255220183. The next prime is 6715255220227. The reversal of 6715255220212 is 2120225525176.

It is a super-2 number, since 2×67152552202122 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16738989 + ... + 17135467.

It is an arithmetic number, because the mean of its divisors is an integer number (154176798720).

Almost surely, 26715255220212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6715255220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7400486338560).

6715255220212 is an abundant number, since it is smaller than the sum of its proper divisors (8085717456908).

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

6715255220212 is a wasteful number, since it uses less digits than its factorization.

6715255220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397061 (or 397059 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 6715255220212 in words is "six trillion, seven hundred fifteen billion, two hundred fifty-five million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 127 154 254 308 433 508 866 889 1397 1732 1778 2794 3031 3556 4763 5588 6062 9526 9779 12124 19052 19558 33341 39116 54991 66682 109982 133364 219964 384937 396479 604901 769874 792958 1209802 1539748 1585916 2419604 2775353 4234307 4361269 5550706 8468614 8722538 11101412 16937228 17445076 30528883 50352833 61057766 100705666 122115532 171675407 201411332 343350814 352469831 553881163 686701628 704939662 1107762326 1201727849 1409879324 1888429477 2215524652 2403455698 3776858954 3877168141 4806911396 7553717908 7754336282 13219006339 15508672564 21802776689 26438012678 43605553378 52876025356 87211106756 152619436823 239830543579 305238873646 479661087158 610477747292 959322174316 1678813805053 3357627610106 6715255220212