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67028706048 = 28387276961
BaseRepresentation
bin111110011011001110…
…001110001100000000
320102000100100001211110
4332123032032030000
52044233322043143
650443105443320
74562014413033
oct763316161400
9212010301743
1067028706048
1126476a58a37
1210ba7940540
1364229a4155
14335c16301a
151b2483c533
hexf9b38e300

67028706048 has 36 divisors (see below), whose sum is σ = 178394110328. Its totient is φ = 22342901760.

The previous prime is 67028706047. The next prime is 67028706053. The reversal of 67028706048 is 84060782076.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 67028705988 and 67028706006.

It is not an unprimeable number, because it can be changed into a prime (67028706047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43637713 + ... + 43639248.

Almost surely, 267028706048 is an apocalyptic number.

It is an amenable number.

67028706048 is an abundant number, since it is smaller than the sum of its proper divisors (111365404280).

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

67028706048 is an equidigital number, since it uses as much as digits as its factorization.

67028706048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87276980 (or 87276966 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 67028706048 in words is "sixty-seven billion, twenty-eight million, seven hundred six thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 87276961 174553922 261830883 349107844 523661766 698215688 1047323532 1396431376 2094647064 2792862752 4189294128 5585725504 8378588256 11171451008 16757176512 22342902016 33514353024 67028706048