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12812004076 = 22192291631877
BaseRepresentation
bin10111110111010011…
…11010101011101100
31020001220001020112111
423323221322223230
5202214333112301
65515153413404
7632331144364
oct137351725354
936056036474
1012812004076
115485051323
12259686a264
13129245b501
148977cd9a4
154eebb9551
hex2fba7aaec

12812004076 has 72 divisors (see below), whose sum is σ = 24642439920. Its totient is φ = 5820522624.

The previous prime is 12812004061. The next prime is 12812004089. The reversal of 12812004076 is 67040021821.

It is a super-3 number, since 3×128120040763 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6824850 + ... + 6826726.

It is an arithmetic number, because the mean of its divisors is an integer number (342256110).

Almost surely, 212812004076 is an apocalyptic number.

It is an amenable number.

12812004076 is a deficient number, since it is larger than the sum of its proper divisors (11830435844).

12812004076 is a wasteful number, since it uses less digits than its factorization.

12812004076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 12812004076 its reverse (67040021821), we get a palindrome (79852025897).

The spelling of 12812004076 in words is "twelve billion, eight hundred twelve million, four thousand, seventy-six".

Divisors: 1 2 4 19 29 38 58 76 116 163 326 361 551 652 722 1102 1444 1877 2204 3097 3754 4727 6194 7508 9454 10469 12388 18908 20938 35663 41876 54433 58843 71326 89813 108866 117686 142652 179626 217732 235372 305951 359252 611902 677597 1034227 1223804 1355194 1706447 2068454 2710388 3412894 4136908 5813069 6825788 8872579 11626138 17745158 19650313 23252276 35490316 39300626 78601252 110448311 168579001 220896622 337158002 441793244 674316004 3203001019 6406002038 12812004076