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68051272016790 = 232519333547110281
BaseRepresentation
bin11110111100100011010111…
…11001010010001110010110
322220221122020011010020110100
433132101223321102032112
532404423001114014130
6400422153415434530
720222353650052326
oct1736215371221626
9286848204106410
1068051272016790
111a757422a62437
127770961385a46
132bc829090030a
1412b39b0621286
157d0282dc1c60
hex3de46be52396

68051272016790 has 96 divisors (see below), whose sum is σ = 177076354250016. Its totient is φ = 18132339939840.

The previous prime is 68051272016753. The next prime is 68051272016821. The reversal of 68051272016790 is 9761027215086.

68051272016790 is a `hidden beast` number, since 6 + 8 + 0 + 512 + 7 + 20 + 16 + 7 + 90 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 617016450 + ... + 617126730.

It is an arithmetic number, because the mean of its divisors is an integer number (1844545356771).

Almost surely, 268051272016790 is an apocalyptic number.

68051272016790 is an abundant number, since it is smaller than the sum of its proper divisors (109025082233226).

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

68051272016790 is a wasteful number, since it uses less digits than its factorization.

68051272016790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115774 (or 115771 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 68051272016790 in words is "sixty-eight trillion, fifty-one billion, two hundred seventy-two million, sixteen thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1933 3547 3866 5799 7094 9665 10641 11598 17397 17735 19330 21282 28995 31923 34794 35470 53205 57990 63846 86985 106410 110281 159615 173970 220562 319230 330843 551405 661686 992529 1102810 1654215 1985058 3308430 4962645 6856351 9925290 13712702 20569053 34281755 41138106 61707159 68563510 102845265 123414318 205690530 213173173 308535795 391166707 426346346 617071590 639519519 782333414 1065865865 1173500121 1279039038 1918558557 1955833535 2131731730 2347000242 3197597595 3520500363 3837117114 3911667070 5867500605 6395195190 7041000726 9592792785 11735001210 17602501815 19185585570 35205003630 756125244631 1512250489262 2268375733893 3780626223155 4536751467786 6805127201679 7561252446310 11341878669465 13610254403358 22683757338930 34025636008395 68051272016790