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8228228280909 = 372133167230941
BaseRepresentation
bin111011110111100100010…
…0111111011001001001101
31002010121111101011100001020
41313233020213323021031
52034302402414442114
625255555040104353
71506320111253300
oct167571047731115
932117441140036
108228228280909
11269263239a70a
12b0a8290050b9
13478bc320aa20
14206369774b37
15e407d6e4aa9
hex77bc89fb24d

8228228280909 has 144 divisors (see below), whose sum is σ = 14402579175936. Its totient is φ = 4137336403200.

The previous prime is 8228228280889. The next prime is 8228228280917. The reversal of 8228228280909 is 9090828228228.

It is not a de Polignac number, because 8228228280909 - 211 = 8228228278861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8228228280109) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 265917379 + ... + 265948319.

It is an arithmetic number, because the mean of its divisors is an integer number (100017910944).

Almost surely, 28228228280909 is an apocalyptic number.

It is an amenable number.

8228228280909 is a deficient number, since it is larger than the sum of its proper divisors (6174350895027).

8228228280909 is a wasteful number, since it uses less digits than its factorization.

8228228280909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31136 (or 31062 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 60.

The spelling of 8228228280909 in words is "eight trillion, two hundred twenty-eight billion, two hundred twenty-eight million, two hundred eighty thousand, nine hundred nine".

Divisors: 1 3 7 13 21 31 39 49 67 91 93 147 201 217 273 403 469 637 651 871 1209 1407 1519 1911 2077 2613 2821 3283 4489 4557 6097 6231 8463 9849 13467 14539 18291 19747 27001 30941 31423 42679 43617 58357 59241 81003 92823 94269 101773 128037 139159 175071 189007 216587 219961 305319 402233 408499 417477 567021 649761 659883 959171 974113 1206699 1225497 1323049 1516109 1809067 2073047 2815631 2859493 2877513 2922339 3969147 4548327 5427201 6219141 6714197 6818791 8446893 8578479 12469223 12663469 14511329 19709417 20142591 20456373 26949611 37407669 37990407 43533987 46999379 59128251 64264457 80848833 87284561 88644283 101579303 138894149 140998137 188647277 192793371 261853683 265932849 304737909 416682447 449851199 565941831 610991927 835437941 972259043 1320530939 1349553597 1805623937 1832975781 2506313823 2916777129 3148958393 3961592817 4305718619 5416871811 5848065587 6805813301 9446875179 12639367559 12917155857 17544196761 20417439903 30140030333 37918102677 40936459109 55974342047 88475572913 90420090999 122809377327 167923026141 210980212331 265426718739 391820394329 632940636993 1175461182987 2742742760303 8228228280909