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68043481725 = 3524877192591
BaseRepresentation
bin111111010111101101…
…010010001001111101
320111122001211000100210
4333113231102021331
52103323112403400
651131515543033
74626116023512
oct772755221175
9214561730323
1068043481725
1126947853a1a
121122b75aa79
136554cb582b
143416c39309
151b8398b950
hexfd7b5227d

68043481725 has 48 divisors (see below), whose sum is σ = 112929914880. Its totient is φ = 36151012800.

The previous prime is 68043481621. The next prime is 68043481763. The reversal of 68043481725 is 52718434086.

It is not a de Polignac number, because 68043481725 - 212 = 68043477629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26260180 + ... + 26262770.

It is an arithmetic number, because the mean of its divisors is an integer number (2352706560).

Almost surely, 268043481725 is an apocalyptic number.

It is an amenable number.

68043481725 is a deficient number, since it is larger than the sum of its proper divisors (44886433155).

68043481725 is a wasteful number, since it uses less digits than its factorization.

68043481725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810 (or 3805 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 68043481725 in words is "sixty-eight billion, forty-three million, four hundred eighty-one thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 487 719 1461 2157 2435 2591 3595 7305 7773 10785 12175 12955 17975 36525 38865 53925 64775 194325 350153 1050459 1261817 1750765 1862929 3785451 5252295 5588787 6309085 8753825 9314645 18927255 26261475 27943935 31545425 46573225 94636275 139719675 907246423 2721739269 4536232115 13608696345 22681160575 68043481725