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8109643028608 = 271110355919317
BaseRepresentation
bin111011000000010110001…
…1001000101100010000000
31001201021101222002100112201
41312000230121011202000
52030332022103403413
625125304002402544
71464621341245612
oct166005431054200
931637358070481
108109643028608
11264730a087470
12aab853060454
1346a975166994
1420071a29cdb2
15e0e3ca489dd
hex7602c645880

8109643028608 has 64 divisors (see below), whose sum is σ = 17795763760320. Its totient is φ = 3650412948480.

The previous prime is 8109643028551. The next prime is 8109643028693. The reversal of 8109643028608 is 8068203469018.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×81096430286083 (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27814635 + ... + 28104682.

It is an arithmetic number, because the mean of its divisors is an integer number (278058808755).

Almost surely, 28109643028608 is an apocalyptic number.

8109643028608 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8109643028608 is an abundant number, since it is smaller than the sum of its proper divisors (9686120731712).

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

8109643028608 is a wasteful number, since it uses less digits than its factorization.

8109643028608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55919445 (or 55919433 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 8109643028608 in words is "eight trillion, one hundred nine billion, six hundred forty-three million, twenty-eight thousand, six hundred eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 103 128 176 206 352 412 704 824 1133 1408 1648 2266 3296 4532 6592 9064 13184 18128 36256 72512 145024 55919317 111838634 223677268 447354536 615112487 894709072 1230224974 1789418144 2460449948 3578836288 4920899896 5759689651 7157672576 9841799792 11519379302 19683599584 23038758604 39367199168 46077517208 63356586161 78734398336 92155034416 126713172322 184310068832 253426344644 368620137664 506852689288 737240275328 1013705378576 2027410757152 4054821514304 8109643028608