Base | Representation |
---|---|
bin | 1001010011101… |
… | …10100101101101 |
3 | 12102220220010101 |
4 | 10221312211231 |
5 | 124442032430 |
6 | 11425311101 |
7 | 1635446356 |
oct | 451664555 |
9 | 172826111 |
10 | 78080365 |
11 | 4008aa30 |
12 | 22195491 |
13 | 1323a6cc |
14 | a526d2d |
15 | 6cc4dca |
hex | 4a7696d |
78080365 has 8 divisors (see below), whose sum is σ = 102214368. Its totient is φ = 56785680.
The previous prime is 78080357. The next prime is 78080369. The reversal of 78080365 is 56308087.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 78080365 - 23 = 78080357 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78080369) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709767 + ... + 709876.
It is an arithmetic number, because the mean of its divisors is an integer number (12776796).
Almost surely, 278080365 is an apocalyptic number.
It is an amenable number.
78080365 is a deficient number, since it is larger than the sum of its proper divisors (24134003).
78080365 is a wasteful number, since it uses less digits than its factorization.
78080365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1419659.
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 78080365 is about 8836.3094671927. The cubic root of 78080365 is about 427.4125580649.
The spelling of 78080365 in words is "seventy-eight million, eighty thousand, three hundred sixty-five".
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