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67379029385 = 5671074993767
BaseRepresentation
bin111110110000000110…
…100110010110001001
320102220202112100002212
4332300012212112021
52100443012420020
650541542234505
74603500204623
oct766006462611
9212822470085
1067379029385
1126636784058
1211085125a35
13647a441575
1433928b5c13
151b4548bcc5
hexfb01a6589

67379029385 has 32 divisors (see below), whose sum is σ = 83016576000. Its totient is φ = 52483096512.

The previous prime is 67379029363. The next prime is 67379029427. The reversal of 67379029385 is 58392097376.

It is a cyclic number.

It is not a de Polignac number, because 67379029385 - 220 = 67377980809 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 17884772 + ... + 17888538.

It is an arithmetic number, because the mean of its divisors is an integer number (2594268000).

Almost surely, 267379029385 is an apocalyptic number.

It is an amenable number.

67379029385 is a deficient number, since it is larger than the sum of its proper divisors (15637546615).

67379029385 is a wasteful number, since it uses less digits than its factorization.

67379029385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 67379029385 in words is "sixty-seven billion, three hundred seventy-nine million, twenty-nine thousand, three hundred eighty-five".

Divisors: 1 5 67 107 335 499 535 2495 3767 7169 18835 33433 35845 53393 167165 252389 266965 403069 1261945 1879733 2015345 3577331 9398665 17886655 27005623 125942111 135028115 201131431 629710555 1005657155 13475805877 67379029385