Base | Representation |
---|---|
bin | 10001110110001010000110… |
… | …011110011010111000100111 |
3 | 101021220102111201021111210011 |
4 | 101312022012132122320213 |
5 | 40241423411023112422 |
6 | 434533040331111051 |
7 | 22350414625215610 |
oct | 2166120636327047 |
9 | 337812451244704 |
10 | 78488488488487 |
11 | 23010865619880 |
12 | 8977717ba2487 |
13 | 34a458186864c |
14 | 1554c12546c07 |
15 | 9119ebb61077 |
hex | 47628679ae27 |
78488488488487 has 8 divisors (see below), whose sum is σ = 97855777855872. Its totient is φ = 61159861159800.
The previous prime is 78488488488467. The next prime is 78488488488521.
78488488488487 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 not a de Polignac number, because 78488488488487 - 27 = 78488488488359 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 78488488488395 and 78488488488404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78488488488467) 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, 509665509589 + ... + 509665509742.
It is an arithmetic number, because the mean of its divisors is an integer number (12231972231984).
Almost surely, 278488488488487 is an apocalyptic number.
78488488488487 is a gapful number since it is divisible by the number (77) formed by its first and last digit.
78488488488487 is a deficient number, since it is larger than the sum of its proper divisors (19367289367385).
78488488488487 is a wasteful number, since it uses less digits than its factorization.
78488488488487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1019331019349.
The product of its digits is 210453397504, while the sum is 94.
The spelling of 78488488488487 in words is "seventy-eight trillion, four hundred eighty-eight billion, four hundred eighty-eight million, four hundred eighty-eight thousand, four hundred eighty-seven".
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