Base | Representation |
---|---|
bin | 1100011011111000… |
… | …10010110111101001 |
3 | 122020021202021002211 |
4 | 12031330102313221 |
5 | 102133122020211 |
6 | 3022253325121 |
7 | 324306062254 |
oct | 61574226751 |
9 | 18207667084 |
10 | 6676360681 |
11 | 29166a4661 |
12 | 1363a967a1 |
13 | 82524c3a3 |
14 | 47499209b |
15 | 2911dae21 |
hex | 18df12de9 |
6676360681 has 9 divisors (see below), whose sum is σ = 6751463173. Its totient is φ = 6602087200.
The previous prime is 6676360637. The next prime is 6676360741. The reversal of 6676360681 is 1860636766.
The square root of 6676360681 is 81709.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 4835950681 + 1840410000 = 69541^2 + 42900^2 .
It is not a de Polignac number, because 6676360681 - 215 = 6676327913 is a prime.
It is a super-2 number, since 2×66763606812 = 89147583885605567522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6676360081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8252205 + ... + 8253013.
Almost surely, 26676360681 is an apocalyptic number.
6676360681 is the 81709-th square number.
6676360681 is the 40855-th centered octagonal number.
It is an amenable number.
6676360681 is a deficient number, since it is larger than the sum of its proper divisors (75102492).
6676360681 is an frugal number, since it uses more digits than its factorization.
6676360681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1820 (or 910 counting only the distinct ones).
The product of its (nonzero) digits is 1306368, while the sum is 49.
The cubic root of 6676360681 is about 1882.9838576299.
Multiplying 6676360681 by its sum of digits (49), we get a square (327141673369 = 5719632).
The spelling of 6676360681 in words is "six billion, six hundred seventy-six million, three hundred sixty thousand, six hundred eighty-one".
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