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67420358735 = 5172334486117
BaseRepresentation
bin111110110010100100…
…010000100001001111
320110000122022002022112
4332302210100201033
52101034102434420
650550020134235
74604511410432
oct766244204117
9213018262275
1067420358735
1126658042444
1211096b3737b
136485b821c2
143398193819
151b48e028c5
hexfb291084f

67420358735 has 16 divisors (see below), whose sum is σ = 89388017856. Its totient is φ = 48556451328.

The previous prime is 67420358729. The next prime is 67420358791. The reversal of 67420358735 is 53785302476.

It is a cyclic number.

It is not a de Polignac number, because 67420358735 - 220 = 67419310159 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 17241104 + ... + 17245013.

It is an arithmetic number, because the mean of its divisors is an integer number (5586751116).

Almost surely, 267420358735 is an apocalyptic number.

67420358735 is a deficient number, since it is larger than the sum of its proper divisors (21967659121).

67420358735 is a wasteful number, since it uses less digits than its factorization.

67420358735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34486162.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 67420358735 in words is "sixty-seven billion, four hundred twenty million, three hundred fifty-eight thousand, seven hundred thirty-five".

Divisors: 1 5 17 23 85 115 391 1955 34486117 172430585 586263989 793180691 2931319945 3965903455 13484071747 67420358735