Base | Representation |
---|---|
bin | 111000011110100111… |
… | …1001110100100101100 |
3 | 102121001122220212221210 |
4 | 1300331033032210230 |
5 | 3441343320030231 |
6 | 131415050154420 |
7 | 11522410060242 |
oct | 1607517164454 |
9 | 377048825853 |
10 | 121286486316 |
11 | 4748a072356 |
12 | 1b60a722a10 |
13 | b58b8a0388 |
14 | 5c2814a792 |
15 | 324cdc6a46 |
hex | 1c3d3ce92c |
121286486316 has 48 divisors (see below), whose sum is σ = 296268344064. Its totient is φ = 38545062336.
The previous prime is 121286486311. The next prime is 121286486327. The reversal of 121286486316 is 613684682121.
It is not an unprimeable number, because it can be changed into a prime (121286486311) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630975 + ... + 800438.
It is an arithmetic number, because the mean of its divisors is an integer number (6172257168).
Almost surely, 2121286486316 is an apocalyptic number.
It is an amenable number.
121286486316 is an abundant number, since it is smaller than the sum of its proper divisors (174981857748).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121286486316 is a wasteful number, since it uses less digits than its factorization.
121286486316 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1431750 (or 1431748 counting only the distinct ones).
The product of its digits is 663552, while the sum is 48.
The spelling of 121286486316 in words is "one hundred twenty-one billion, two hundred eighty-six million, four hundred eighty-six thousand, three hundred sixteen".
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