Base | Representation |
---|---|
bin | 100100101100100000… |
… | …1110010110111110000 |
3 | 21112101220211220212000 |
4 | 1021121001302313300 |
5 | 2242342040212224 |
6 | 100111314534000 |
7 | 5456545623210 |
oct | 1113101626760 |
9 | 245356756760 |
10 | 78803054064 |
11 | 304692a6969 |
12 | 13332b97300 |
13 | 757b16c797 |
14 | 3b57c02240 |
15 | 20b33880c9 |
hex | 1259072df0 |
78803054064 has 160 divisors (see below), whose sum is σ = 265494435840. Its totient is φ = 21906609408.
The previous prime is 78803054053. The next prime is 78803054111. The reversal of 78803054064 is 46045030887.
78803054064 is a `hidden beast` number, since 78 + 8 + 0 + 30 + 540 + 6 + 4 = 666.
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 31 ways as a sum of consecutive naturals, for example, 240264 + ... + 464039.
It is an arithmetic number, because the mean of its divisors is an integer number (1659340224).
Almost surely, 278803054064 is an apocalyptic number.
78803054064 is a gapful number since it is divisible by the number (74) formed by its first and last digit.
It is an amenable number.
78803054064 is an abundant number, since it is smaller than the sum of its proper divisors (186691381776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78803054064 is a wasteful number, since it uses less digits than its factorization.
78803054064 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 704364 (or 704352 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 78803054064 in words is "seventy-eight billion, eight hundred three million, fifty-four thousand, sixty-four".
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