Base | Representation |
---|---|
bin | 100100101110111011… |
… | …0110000111111110111 |
3 | 21112121120020212212021 |
4 | 1021131312300333313 |
5 | 2243023304031022 |
6 | 100123330534011 |
7 | 5461551231550 |
oct | 1113566607767 |
9 | 245546225767 |
10 | 78884048887 |
11 | 304aaa97536 |
12 | 13356137307 |
13 | 7591b8a907 |
14 | 3b64887327 |
15 | 20ba5367c7 |
hex | 125ddb0ff7 |
78884048887 has 8 divisors (see below), whose sum is σ = 91045805472. Its totient is φ = 66945444000.
The previous prime is 78884048833. The next prime is 78884048927.
78884048887 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-78884048887 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 (78884048827) 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, 55787164 + ... + 55788577.
It is an arithmetic number, because the mean of its divisors is an integer number (11380725684).
Almost surely, 278884048887 is an apocalyptic number.
78884048887 is a deficient number, since it is larger than the sum of its proper divisors (12161756585).
78884048887 is a wasteful number, since it uses less digits than its factorization.
78884048887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111575849.
The product of its (nonzero) digits is 205520896, while the sum is 70.
The spelling of 78884048887 in words is "seventy-eight billion, eight hundred eighty-four million, forty-eight thousand, eight hundred eighty-seven".
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