Base | Representation |
---|---|
bin | 10001111010011010001000… |
… | …001100100010001001100101 |
3 | 101022221100102201211021201210 |
4 | 101322122020030202021211 |
5 | 40311220104213131323 |
6 | 435315144021342033 |
7 | 22410465043546005 |
oct | 2172321014421145 |
9 | 338840381737653 |
10 | 78780575130213 |
11 | 23113721945960 |
12 | 8a04253267919 |
13 | 34c5c9009b628 |
14 | 15650006d6005 |
15 | 9193e473b293 |
hex | 47a688322265 |
78780575130213 has 32 divisors (see below), whose sum is σ = 120190930329600. Its totient is φ = 45466963709760.
The previous prime is 78780575130193. The next prime is 78780575130221. The reversal of 78780575130213 is 31203157508787.
It is not a de Polignac number, because 78780575130213 - 25 = 78780575130181 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78780575140213) 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 31 ways as a sum of consecutive naturals, for example, 686340013 + ... + 686454786.
It is an arithmetic number, because the mean of its divisors is an integer number (3755966572800).
Almost surely, 278780575130213 is an apocalyptic number.
It is an amenable number.
78780575130213 is a deficient number, since it is larger than the sum of its proper divisors (41410355199387).
78780575130213 is a wasteful number, since it uses less digits than its factorization.
78780575130213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1372794897.
The product of its (nonzero) digits is 9878400, while the sum is 57.
The spelling of 78780575130213 in words is "seventy-eight trillion, seven hundred eighty billion, five hundred seventy-five million, one hundred thirty thousand, two hundred thirteen".
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