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68818024476 = 22325336068147
BaseRepresentation
bin100000000010111011…
…1111011100000011100
320120122001020212021100
41000011313323200130
52111414403240401
651340425033100
74654242361605
oct1000567734034
9216561225240
1068818024476
1127204a873a3
1211407025790
1366495c4356
14348ba58dac
151bcb985b86
hex1005dfb81c

68818024476 has 36 divisors (see below), whose sum is σ = 177238879272. Its totient is φ = 22506523104.

The previous prime is 68818024469. The next prime is 68818024481. The reversal of 68818024476 is 67442081886.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18032166 + ... + 18035981.

It is an arithmetic number, because the mean of its divisors is an integer number (4923302202).

Almost surely, 268818024476 is an apocalyptic number.

It is an amenable number.

68818024476 is an abundant number, since it is smaller than the sum of its proper divisors (108420854796).

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

68818024476 is a wasteful number, since it uses less digits than its factorization.

68818024476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36068210 (or 36068205 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 68818024476 in words is "sixty-eight billion, eight hundred eighteen million, twenty-four thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 36068147 72136294 108204441 144272588 216408882 324613323 432817764 649226646 1298453292 1911611791 3823223582 5734835373 7646447164 11469670746 17204506119 22939341492 34409012238 68818024476