Base | Representation |
---|---|
bin | 10010101010011111010… |
… | …10010110101110110100 |
3 | 2021022021100221011222200 |
4 | 21111033222112232310 |
5 | 41001323334132244 |
6 | 1210334130024500 |
7 | 64221452263434 |
oct | 11251752265664 |
9 | 2238240834880 |
10 | 641286630324 |
11 | 227a71647a8a |
12 | a4351718130 |
13 | 4861c446492 |
14 | 230776922c4 |
15 | 11a347a3669 |
hex | 954fa96bb4 |
641286630324 has 36 divisors (see below), whose sum is σ = 1626310349664. Its totient is φ = 213065912592.
The previous prime is 641286630323. The next prime is 641286630419. The reversal of 641286630324 is 423036682146.
641286630324 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 8 + 6 + 630 + 3 + 2 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×6412866303242 (a number of 24 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 641286630324.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (641286630323) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29001192 + ... + 29023295.
Almost surely, 2641286630324 is an apocalyptic number.
It is an amenable number.
641286630324 is an abundant number, since it is smaller than the sum of its proper divisors (985023719340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
641286630324 is a wasteful number, since it uses less digits than its factorization.
641286630324 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58024804 (or 58024799 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 45.
The spelling of 641286630324 in words is "six hundred forty-one billion, two hundred eighty-six million, six hundred thirty thousand, three hundred twenty-four".
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