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68185354700 = 22526128613907
BaseRepresentation
bin111111100000001010…
…011111000111001100
320111222221202220111102
4333200022133013030
52104120422322300
651153544442232
74632460644401
oct774012370714
9214887686442
1068185354700
1126a0a945211
121126b179378
1365784ca538
14342ba0a2a8
151b911630d5
hexfe029f1cc

68185354700 has 72 divisors (see below), whose sum is σ = 150478899984. Its totient is φ = 26810784000.

The previous prime is 68185354681. The next prime is 68185354711. The reversal of 68185354700 is 745358186.

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 23 ways as a sum of consecutive naturals, for example, 17450147 + ... + 17454053.

It is an arithmetic number, because the mean of its divisors is an integer number (2089984722).

Almost surely, 268185354700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68185354700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75239449992).

68185354700 is an abundant number, since it is smaller than the sum of its proper divisors (82293545284).

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

68185354700 is a wasteful number, since it uses less digits than its factorization.

68185354700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843 (or 6836 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 68185354700 in words is "sixty-eight billion, one hundred eighty-five million, three hundred fifty-four thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 61 100 122 244 305 610 1220 1525 2861 3050 3907 5722 6100 7814 11444 14305 15628 19535 28610 39070 57220 71525 78140 97675 143050 174521 195350 238327 286100 349042 390700 476654 698084 872605 953308 1191635 1745210 2383270 3490420 4363025 4766540 5958175 8726050 11177927 11916350 17452100 22355854 23832700 44711708 55889635 111779270 223558540 279448175 558896350 681853547 1117792700 1363707094 2727414188 3409267735 6818535470 13637070940 17046338675 34092677350 68185354700