Base | Representation |
---|---|
bin | 110011000100001001… |
… | …100001001110100001 |
3 | 12020112020010210212100 |
4 | 303010021201032201 |
5 | 1344243042443111 |
6 | 41104434321013 |
7 | 3650515012164 |
oct | 630411411641 |
9 | 166466123770 |
10 | 54830437281 |
11 | 21287397084 |
12 | a762729169 |
13 | 522a740339 |
14 | 2922093adb |
15 | 165d9a5756 |
hex | cc42613a1 |
54830437281 has 27 divisors (see below), whose sum is σ = 80190839001. Its totient is φ = 36101697984.
The previous prime is 54830437279. The next prime is 54830437289. The reversal of 54830437281 is 18273403845.
The square root of 54830437281 is 234159.
It is a perfect power (a square), and thus also a powerful number.
54830437281 is a `hidden beast` number, since 548 + 30 + 4 + 3 + 72 + 8 + 1 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 113742225 + 54716695056 = 10665^2 + 233916^2 .
It is not a de Polignac number, because 54830437281 - 21 = 54830437279 is a prime.
It is a super-2 number, since 2×548304372812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (54830437289) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 62520015 + ... + 62520891.
Almost surely, 254830437281 is an apocalyptic number.
54830437281 is the 234159-th square number.
54830437281 is the 117080-th centered octagonal number.
It is an amenable number.
54830437281 is a deficient number, since it is larger than the sum of its proper divisors (25360401720).
54830437281 is an frugal number, since it uses more digits than its factorization.
54830437281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1938 (or 969 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
It can be divided in two parts, 548304 and 37281, that added together give a palindrome (585585).
The spelling of 54830437281 in words is "fifty-four billion, eight hundred thirty million, four hundred thirty-seven thousand, two hundred eighty-one".
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