Base | Representation |
---|---|
bin | 11110111000100… |
… | …000110011010001 |
3 | 1100002221202222020 |
4 | 132320200303101 |
5 | 2030120142042 |
6 | 123225202053 |
7 | 15561016464 |
oct | 3670406321 |
9 | 1302852866 |
10 | 518130897 |
11 | 246520459 |
12 | 125630329 |
13 | 8346283b |
14 | 4cb552db |
15 | 3074a3ec |
hex | 1ee20cd1 |
518130897 has 8 divisors (see below), whose sum is σ = 692565600. Its totient is φ = 344558400.
The previous prime is 518130883. The next prime is 518130923. The reversal of 518130897 is 798031815.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 518130897 - 24 = 518130881 is a prime.
It is not an unprimeable number, because it can be changed into a prime (518130827) 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, 214147 + ... + 216552.
It is an arithmetic number, because the mean of its divisors is an integer number (86570700).
Almost surely, 2518130897 is an apocalyptic number.
It is an amenable number.
518130897 is a deficient number, since it is larger than the sum of its proper divisors (174434703).
518130897 is a wasteful number, since it uses less digits than its factorization.
518130897 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 431103.
The product of its (nonzero) digits is 60480, while the sum is 42.
The square root of 518130897 is about 22762.4888138358. The cubic root of 518130897 is about 803.1805141760.
The spelling of 518130897 in words is "five hundred eighteen million, one hundred thirty thousand, eight hundred ninety-seven".
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