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1029288636768 = 253712109126491
BaseRepresentation
bin11101111101001100110…
…00100011000101100000
310122101202220011022221210
432332212120203011200
5113330440342334033
62104503151350120
7134235506025420
oct16764630430540
93571686138853
101029288636768
11367578669227
12147596822340
13760a5173342
1437b641da480
151bb92bc5d63
hexefa6623160

1029288636768 has 96 divisors (see below), whose sum is σ = 3088145329920. Its totient is φ = 294055856640.

The previous prime is 1029288636709. The next prime is 1029288636797. The reversal of 1029288636768 is 8676368829201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1029288636699 and 1029288636708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8074003 + ... + 8200493.

It is an arithmetic number, because the mean of its divisors is an integer number (32168180520).

Almost surely, 21029288636768 is an apocalyptic number.

It is an amenable number.

1029288636768 is an abundant number, since it is smaller than the sum of its proper divisors (2058856693152).

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

1029288636768 is a wasteful number, since it uses less digits than its factorization.

1029288636768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138620 (or 138612 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 66.

The spelling of 1029288636768 in words is "one trillion, twenty-nine billion, two hundred eighty-eight million, six hundred thirty-six thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 12109 24218 36327 48436 72654 84763 96872 126491 145308 169526 193744 252982 254289 290616 339052 379473 387488 505964 508578 581232 678104 758946 885437 1011928 1017156 1162464 1356208 1517892 1770874 2023856 2034312 2656311 2712416 3035784 3541748 4047712 4068624 5312622 6071568 7083496 8137248 10625244 12143136 14166992 21250488 28333984 42500976 85001952 1531679519 3063359038 4595038557 6126718076 9190077114 10721756633 12253436152 18380154228 21443513266 24506872304 32165269899 36760308456 42887026532 49013744608 64330539798 73520616912 85774053064 128661079596 147041233824 171548106128 257322159192 343096212256 514644318384 1029288636768