Base | Representation |
---|---|
bin | 101100001101… |
… | …1010011110010 |
3 | 1121121200201011 |
4 | 1120123103302 |
5 | 21413234110 |
6 | 2144501134 |
7 | 401013502 |
oct | 130332362 |
9 | 47550634 |
10 | 23180530 |
11 | 120a296a |
12 | 791a7aa |
13 | 4a57cb9 |
14 | 3115a02 |
15 | 207d48a |
hex | 161b4f2 |
23180530 has 16 divisors (see below), whose sum is σ = 41877504. Its totient is φ = 9238320.
The previous prime is 23180519. The next prime is 23180543. The reversal of 23180530 is 3508132.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 6925.
It is an arithmetic number, because the mean of its divisors is an integer number (2617344).
Almost surely, 223180530 is an apocalyptic number.
23180530 is a deficient number, since it is larger than the sum of its proper divisors (18696974).
23180530 is a wasteful number, since it uses less digits than its factorization.
23180530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8481.
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 23180530 is about 4814.6162879299. The cubic root of 23180530 is about 285.1288224436.
Adding to 23180530 its reverse (3508132), we get a palindrome (26688662).
The spelling of 23180530 in words is "twenty-three million, one hundred eighty thousand, five hundred thirty".
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