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78430326242 = 251419762659
BaseRepresentation
bin100100100001011001…
…1111100110111100010
321111102221111101101212
41021002303330313202
52241111130414432
6100010322030122
75444401526162
oct1110263746742
9244387441355
1078430326242
1130297968a44
121324a1a8342
13751bb89688
143b204da5a2
1520907b02b2
hex1242cfcde2

78430326242 has 8 divisors (see below), whose sum is σ = 117647931600. Its totient is φ = 39214349044.

The previous prime is 78430326241. The next prime is 78430326253. The reversal of 78430326242 is 24262303487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78430326242.

It is not an unprimeable number, because it can be changed into a prime (78430326241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278492 + ... + 484167.

It is an arithmetic number, because the mean of its divisors is an integer number (14705991450).

Almost surely, 278430326242 is an apocalyptic number.

78430326242 is a deficient number, since it is larger than the sum of its proper divisors (39217605358).

78430326242 is a wasteful number, since it uses less digits than its factorization.

78430326242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814080.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 78430326242 in words is "seventy-eight billion, four hundred thirty million, three hundred twenty-six thousand, two hundred forty-two".

Divisors: 1 2 51419 102838 762659 1525318 39215163121 78430326242