Base | Representation |
---|---|
bin | 11011011110101… |
… | …11111010010001 |
3 | 121001202202102212 |
4 | 31233113322101 |
5 | 433003210023 |
6 | 34512521505 |
7 | 5466260204 |
oct | 1557277221 |
9 | 531682385 |
10 | 230522513 |
11 | 10913aa81 |
12 | 65250295 |
13 | 389b3070 |
14 | 2288993b |
15 | 15387e78 |
hex | dbd7e91 |
230522513 has 8 divisors (see below), whose sum is σ = 248442600. Its totient is φ = 212629248.
The previous prime is 230522473. The next prime is 230522557. The reversal of 230522513 is 315225032.
It can be written as a sum of positive squares in 4 ways, for example, as 332929 + 230189584 = 577^2 + 15172^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230522513 - 216 = 230456977 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230522563) 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, 13403 + ... + 25311.
It is an arithmetic number, because the mean of its divisors is an integer number (31055325).
Almost surely, 2230522513 is an apocalyptic number.
It is an amenable number.
230522513 is a deficient number, since it is larger than the sum of its proper divisors (17920087).
230522513 is a wasteful number, since it uses less digits than its factorization.
230522513 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13411.
The product of its (nonzero) digits is 1800, while the sum is 23.
The square root of 230522513 is about 15182.9678587554. The cubic root of 230522513 is about 613.1561873870.
Adding to 230522513 its reverse (315225032), we get a palindrome (545747545).
The spelling of 230522513 in words is "two hundred thirty million, five hundred twenty-two thousand, five hundred thirteen".
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