Base | Representation |
---|---|
bin | 111100111011111100… |
… | …100101100100000000 |
3 | 20020212221112222011200 |
4 | 330323330211210000 |
5 | 2033000120411210 |
6 | 50020325141200 |
7 | 4504264633410 |
oct | 747374454400 |
9 | 206787488150 |
10 | 65430247680 |
11 | 2582673a566 |
12 | 1082055a800 |
13 | 622978acb5 |
14 | 3249b50640 |
15 | 1a7e3450c0 |
hex | f3bf25900 |
65430247680 has 216 divisors, whose sum is σ = 258722423232. Its totient is φ = 14955466752.
The previous prime is 65430247667. The next prime is 65430247697. The reversal of 65430247680 is 8674203456.
65430247680 is a `hidden beast` number, since 6 + 543 + 0 + 2 + 47 + 68 + 0 = 666.
65430247680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×654302476802 (a number of 22 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325054 + ... + 486333.
Almost surely, 265430247680 is an apocalyptic number.
65430247680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
65430247680 is an abundant number, since it is smaller than the sum of its proper divisors (193292175552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65430247680 is a wasteful number, since it uses less digits than its factorization.
65430247680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 811421 (or 811404 counting only the distinct ones).
The product of its (nonzero) digits is 967680, while the sum is 45.
The spelling of 65430247680 in words is "sixty-five billion, four hundred thirty million, two hundred forty-seven thousand, six hundred eighty".
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