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8128968733290 = 2351715939154379
BaseRepresentation
bin111011001001010110001…
…0010110011001001101010
31001210010021210210212111210
41312102230102303021222
52031141111443431130
625142221403333550
71466204265110136
oct166225422631152
931703253725453
108128968733290
112654526a23429
12ab35472212b6
1346c734c320b2
14201630bbc3c6
15e16be4bd5b0
hex764ac4b326a

8128968733290 has 32 divisors (see below), whose sum is σ = 20657144076480. Its totient is φ = 2040211760384.

The previous prime is 8128968733283. The next prime is 8128968733339. The reversal of 8128968733290 is 923378698218.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7969576680 + ... + 7969577699.

It is an arithmetic number, because the mean of its divisors is an integer number (645535752390).

Almost surely, 28128968733290 is an apocalyptic number.

8128968733290 is an abundant number, since it is smaller than the sum of its proper divisors (12528175343190).

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

8128968733290 is a wasteful number, since it uses less digits than its factorization.

8128968733290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15939154406.

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 8128968733290 in words is "eight trillion, one hundred twenty-eight billion, nine hundred sixty-eight million, seven hundred thirty-three thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 15939154379 31878308758 47817463137 79695771895 95634926274 159391543790 239087315685 270965624443 478174631370 541931248886 812896873329 1354828122215 1625793746658 2709656244430 4064484366645 8128968733290