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78065902342 = 290191432781
BaseRepresentation
bin100100010110100010…
…1110010001100000110
321110111112202201210101
41020231011302030012
52234334332333332
655510223114314
75432355135631
oct1105505621406
9243445681711
1078065902342
113012019196a
121316814299a
13749152312c
143ac7d56c18
15206d7c7ae7
hex122d172306

78065902342 has 8 divisors (see below), whose sum is σ = 117100422432. Its totient is φ = 39032428200.

The previous prime is 78065902339. The next prime is 78065902391. The reversal of 78065902342 is 24320956087.

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

It is a junction number, because it is equal to n+sod(n) for n = 78065902292 and 78065902301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36009 + ... + 396772.

It is an arithmetic number, because the mean of its divisors is an integer number (14637552804).

Almost surely, 278065902342 is an apocalyptic number.

78065902342 is a deficient number, since it is larger than the sum of its proper divisors (39034520090).

78065902342 is a wasteful number, since it uses less digits than its factorization.

78065902342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522974.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 78065902342 in words is "seventy-eight billion, sixty-five million, nine hundred two thousand, three hundred forty-two".

Divisors: 1 2 90191 180382 432781 865562 39032951171 78065902342