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68047715711744 = 28265811389499
BaseRepresentation
bin11110111100011100101111…
…11011000011101100000000
322220221022001022022020001122
433132032113323003230000
532404343210210233434
6400420404455451412
720222166555005126
oct1736162773035400
9286838038266048
1068047715711744
111a75596857885a
12777012a386b68
132bc7b44bab7c2
1412b37541a7916
157d0125a91c2e
hex3de397ec3b00

68047715711744 has 18 divisors (see below), whose sum is σ = 135829620034500. Its totient is φ = 34023857855744.

The previous prime is 68047715711687. The next prime is 68047715711813. The reversal of 68047715711744 is 44711751774086.

It is a super-2 number, since 2×680477157117442 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132905694494 + ... + 132905695005.

Almost surely, 268047715711744 is an apocalyptic number.

68047715711744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68047715711744 is a deficient number, since it is larger than the sum of its proper divisors (67781904322756).

68047715711744 is an equidigital number, since it uses as much as digits as its factorization.

68047715711744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265811389515 (or 265811389501 counting only the distinct ones).

The product of its (nonzero) digits is 36879360, while the sum is 62.

The spelling of 68047715711744 in words is "sixty-eight trillion, forty-seven billion, seven hundred fifteen million, seven hundred eleven thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 256 265811389499 531622778998 1063245557996 2126491115992 4252982231984 8505964463968 17011928927936 34023857855872 68047715711744