Base | Representation |
---|---|
bin | 10001111010011110010110… |
… | …010001001100110110011100 |
3 | 101022221210010111211120201211 |
4 | 101322132112101030312130 |
5 | 40311303344141431022 |
6 | 435321213402114204 |
7 | 22411015243200610 |
oct | 2172362621146634 |
9 | 338853114746654 |
10 | 78785106202012 |
11 | 231156375891a1 |
12 | 8a050b87ab964 |
13 | 34c6532a33bc2 |
14 | 15653103ad340 |
15 | 9195ac415e77 |
hex | 47a79644cd9c |
78785106202012 has 96 divisors (see below), whose sum is σ = 168493592960000. Its totient is φ = 31484569881600.
The previous prime is 78785106202009. The next prime is 78785106202037. The reversal of 78785106202012 is 21020260158787.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4257364 + ... + 13255012.
Almost surely, 278785106202012 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 78785106202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84246796480000).
78785106202012 is an abundant number, since it is smaller than the sum of its proper divisors (89708486757988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78785106202012 is a wasteful number, since it uses less digits than its factorization.
78785106202012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8997939 (or 8997937 counting only the distinct ones).
The product of its (nonzero) digits is 752640, while the sum is 49.
The spelling of 78785106202012 in words is "seventy-eight trillion, seven hundred eighty-five billion, one hundred six million, two hundred two thousand, twelve".
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