Base | Representation |
---|---|
bin | 11011011110110… |
… | …10001110101111 |
3 | 121001210020110210 |
4 | 31233122032233 |
5 | 433004011030 |
6 | 34513033503 |
7 | 5466330000 |
oct | 1557321657 |
9 | 531706423 |
10 | 230532015 |
11 | 10914712a |
12 | 65255893 |
13 | 389b749c |
14 | 2288d1a7 |
15 | 1538abb0 |
hex | dbda3af |
230532015 has 80 divisors (see below), whose sum is σ = 444485088. Its totient is φ = 101945088.
The previous prime is 230532011. The next prime is 230532017. The reversal of 230532015 is 510235032.
It is not a de Polignac number, because 230532015 - 22 = 230532011 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 230531982 and 230532000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230532011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1332469 + ... + 1332641.
Almost surely, 2230532015 is an apocalyptic number.
230532015 is a deficient number, since it is larger than the sum of its proper divisors (213953073).
230532015 is an equidigital number, since it uses as much as digits as its factorization.
230532015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246 (or 225 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 21.
The square root of 230532015 is about 15183.2807719544. The cubic root of 230532015 is about 613.1646119149.
Adding to 230532015 its reverse (510235032), we get a palindrome (740767047).
The spelling of 230532015 in words is "two hundred thirty million, five hundred thirty-two thousand, fifteen".
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