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68222713344 = 293231931123
BaseRepresentation
bin111111100010011000…
…111111111000000000
320112002120001220220220
4333202120333320000
52104210003311334
651201401303040
74633423331622
oct774230777000
9215076056826
1068222713344
1126a29a41325
121127b794a80
13658317aa46
143432972c12
151b94592449
hexfe263fe00

68222713344 has 80 divisors (see below), whose sum is σ = 189651825792. Its totient is φ = 21752158208.

The previous prime is 68222713327. The next prime is 68222713393. The reversal of 68222713344 is 44331722286.

It is a junction number, because it is equal to n+sod(n) for n = 68222713296 and 68222713305.

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 7 ways as a sum of consecutive naturals, for example, 930234 + ... + 1000889.

Almost surely, 268222713344 is an apocalyptic number.

68222713344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68222713344 is an abundant number, since it is smaller than the sum of its proper divisors (121429112448).

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

68222713344 is a wasteful number, since it uses less digits than its factorization.

68222713344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931167 (or 1931151 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The spelling of 68222713344 in words is "sixty-eight billion, two hundred twenty-two million, seven hundred thirteen thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 256 276 368 384 512 552 736 768 1104 1472 1536 2208 2944 4416 5888 8832 11776 17664 35328 1931123 3862246 5793369 7724492 11586738 15448984 23173476 30897968 44415829 46346952 61795936 88831658 92693904 123591872 133247487 177663316 185387808 247183744 266494974 355326632 370775616 494367488 532989948 710653264 741551232 988734976 1065979896 1421306528 1483102464 2131959792 2842613056 2966204928 4263919584 5685226112 8527839168 11370452224 17055678336 22740904448 34111356672 68222713344