Base | Representation |
---|---|
bin | 1110110111010111… |
… | …01001001010010000 |
3 | 202121011221102022200 |
4 | 13123223221022100 |
5 | 112321014242014 |
6 | 3355524203200 |
7 | 401524064664 |
oct | 73353511220 |
9 | 22534842280 |
10 | 7980618384 |
11 | 342593a792 |
12 | 1668839500 |
13 | 9a25182cb |
14 | 559ca08a4 |
15 | 31a96ca09 |
hex | 1dbae9290 |
7980618384 has 60 divisors (see below), whose sum is σ = 23305728576. Its totient is φ = 2544543936.
The previous prime is 7980618383. The next prime is 7980618409. The reversal of 7980618384 is 4838160897.
It is a self number, because there is not a number n which added to its sum of digits gives 7980618384.
It is not an unprimeable number, because it can be changed into a prime (7980618383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1201492 + ... + 1208115.
Almost surely, 27980618384 is an apocalyptic number.
It is an amenable number.
7980618384 is an abundant number, since it is smaller than the sum of its proper divisors (15325110192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7980618384 is a wasteful number, since it uses less digits than its factorization.
7980618384 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2409644 (or 2409635 counting only the distinct ones).
The product of its (nonzero) digits is 2322432, while the sum is 54.
The square root of 7980618384 is about 89334.3068703172. The cubic root of 7980618384 is about 1998.3835592449.
The spelling of 7980618384 in words is "seven billion, nine hundred eighty million, six hundred eighteen thousand, three hundred eighty-four".
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