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80684435056852 = 221167337195141627
BaseRepresentation
bin10010010110000111001111…
…000101110010100011010100
3101120200100122000011101101001
4102112013033011302203110
541033413210333304402
6443333530123113044
722665154342115014
oct2226071705624324
9346610560141331
1080684435056852
1123788093172660
129071226072784
133603681710113
1415cd20ca15c44
1594dbc22d6187
hex4961cf1728d4

80684435056852 has 96 divisors (see below), whose sum is σ = 156880967233536. Its totient is φ = 36000828864000.

The previous prime is 80684435056837. The next prime is 80684435056873. The reversal of 80684435056852 is 25865053448608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1938250863 + ... + 1938292489.

It is an arithmetic number, because the mean of its divisors is an integer number (1634176742016).

Almost surely, 280684435056852 is an apocalyptic number.

It is an amenable number.

80684435056852 is a deficient number, since it is larger than the sum of its proper divisors (76196532176684).

80684435056852 is a wasteful number, since it uses less digits than its factorization.

80684435056852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43997 (or 43995 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 64.

The spelling of 80684435056852 in words is "eighty trillion, six hundred eighty-four billion, four hundred thirty-five million, fifty-six thousand, eight hundred fifty-two".

Divisors: 1 2 4 11 22 44 67 134 268 337 674 737 1348 1474 1951 2948 3707 3902 7414 7804 14828 21461 22579 41627 42922 45158 83254 85844 90316 130717 166508 248369 261434 457897 496738 522868 657487 915794 993476 1314974 1437887 1831588 2629948 2789009 2875774 5578018 5751548 7232357 11156036 14028299 14464714 28056598 28929428 30679099 44051629 56113196 61358198 81214277 88103258 122716396 154311289 162428554 176206516 308622578 324857108 484567919 617245156 893357047 939896033 969135838 1786714094 1879792066 1938271676 3573428188 3759584132 5441356559 10338856363 10882713118 20677712726 21765426236 27369211349 41355425452 54738422698 59854922149 109476845396 119709844298 239419688596 301061324839 602122649678 1204245299356 1833737160383 3667474320766 7334948641532 20171108764213 40342217528426 80684435056852