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67946073813 = 32181161925763
BaseRepresentation
bin111111010001111001…
…101100111011010101
320111101021112011211100
4333101321230323111
52103123143330223
651114120100313
74623524045442
oct772171547325
9214337464740
1067946073813
11268a7872a12
1211203004699
13653aa6bb07
143407d209c9
151b7a14a043
hexfd1e6ced5

67946073813 has 24 divisors (see below), whose sum is σ = 98751350880. Its totient is φ = 45017549280.

The previous prime is 67946073743. The next prime is 67946073821. The reversal of 67946073813 is 31837064976.

It is not a de Polignac number, because 67946073813 - 212 = 67946069717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67946073813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67946073913) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2624470 + ... + 2650232.

It is an arithmetic number, because the mean of its divisors is an integer number (4114639620).

Almost surely, 267946073813 is an apocalyptic number.

It is an amenable number.

67946073813 is a deficient number, since it is larger than the sum of its proper divisors (30805277067).

67946073813 is a wasteful number, since it uses less digits than its factorization.

67946073813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27569 (or 27566 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 67946073813 in words is "sixty-seven billion, nine hundred forty-six million, seventy-three thousand, eight hundred thirteen".

Divisors: 1 3 9 181 543 1619 1629 4857 14571 25763 77289 231867 293039 879117 2637351 4663103 13989309 41710297 41967927 125130891 375392673 7549563757 22648691271 67946073813