Base | Representation |
---|---|
bin | 11110111111111… |
… | …100110001101011 |
3 | 1100020121211022102 |
4 | 132333330301223 |
5 | 2031120033431 |
6 | 123335044015 |
7 | 15613416440 |
oct | 3677746153 |
9 | 1306554272 |
10 | 520080491 |
11 | 247632197 |
12 | 12621060b |
13 | 83996048 |
14 | 4d1019c7 |
15 | 309d2dcb |
hex | 1effcc6b |
520080491 has 8 divisors (see below), whose sum is σ = 596866560. Its totient is φ = 443916648.
The previous prime is 520080481. The next prime is 520080493. The reversal of 520080491 is 194080025.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 520080491 - 214 = 520064107 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (520080493) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153761 + ... + 157106.
It is an arithmetic number, because the mean of its divisors is an integer number (74608320).
Almost surely, 2520080491 is an apocalyptic number.
520080491 is a deficient number, since it is larger than the sum of its proper divisors (76786069).
520080491 is a wasteful number, since it uses less digits than its factorization.
520080491 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 311113.
The product of its (nonzero) digits is 2880, while the sum is 29.
The square root of 520080491 is about 22805.2733156172. The cubic root of 520080491 is about 804.1866408896.
The spelling of 520080491 in words is "five hundred twenty million, eighty thousand, four hundred ninety-one".
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