Base | Representation |
---|---|
bin | 1000000111110111… |
… | …0111111000010010 |
3 | 12121221221212222011 |
4 | 2001331313320102 |
5 | 13431200334110 |
6 | 1000211133134 |
7 | 105014531044 |
oct | 20175677022 |
9 | 5557855864 |
10 | 2180480530 |
11 | a19908328 |
12 | 50a2a41aa |
13 | 289988b87 |
14 | 169839a94 |
15 | cb66348a |
hex | 81f77e12 |
2180480530 has 8 divisors (see below), whose sum is σ = 3924864972. Its totient is φ = 872192208.
The previous prime is 2180480479. The next prime is 2180480539. The reversal of 2180480530 is 350840812.
It can be written as a sum of positive squares in 2 ways, for example, as 2081458129 + 99022401 = 45623^2 + 9951^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 2180480492 and 2180480501.
It is not an unprimeable number, because it can be changed into a prime (2180480539) 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 3 ways as a sum of consecutive naturals, for example, 109024017 + ... + 109024036.
Almost surely, 22180480530 is an apocalyptic number.
2180480530 is a deficient number, since it is larger than the sum of its proper divisors (1744384442).
2180480530 is a wasteful number, since it uses less digits than its factorization.
2180480530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 218048060.
The product of its (nonzero) digits is 7680, while the sum is 31.
The square root of 2180480530 is about 46695.6157470913. The cubic root of 2180480530 is about 1296.7335211648.
The spelling of 2180480530 in words is "two billion, one hundred eighty million, four hundred eighty thousand, five hundred thirty".
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