Base | Representation |
---|---|
bin | 110010011110… |
… | …000101010111 |
3 | 220220011201200 |
4 | 302132011113 |
5 | 11341333143 |
6 | 1151323543 |
7 | 220312443 |
oct | 62360527 |
9 | 26804650 |
10 | 13230423 |
11 | 7517238 |
12 | 45205b3 |
13 | 298306b |
14 | 1a85823 |
15 | 12651d3 |
hex | c9e157 |
13230423 has 24 divisors (see below), whose sum is σ = 19953648. Its totient is φ = 8439552.
The previous prime is 13230419. The next prime is 13230457. The reversal of 13230423 is 32403231.
13230423 is a `hidden beast` number, since 13 + 230 + 423 = 666.
It is not a de Polignac number, because 13230423 - 22 = 13230419 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13230396 and 13230405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13230493) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 22015 + ... + 22607.
It is an arithmetic number, because the mean of its divisors is an integer number (831402).
Almost surely, 213230423 is an apocalyptic number.
13230423 is a deficient number, since it is larger than the sum of its proper divisors (6723225).
13230423 is a wasteful number, since it uses less digits than its factorization.
13230423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 703 (or 700 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 13230423 is about 3637.3648428498. The cubic root of 13230423 is about 236.5145755163.
Adding to 13230423 its reverse (32403231), we get a palindrome (45633654).
The spelling of 13230423 in words is "thirteen million, two hundred thirty thousand, four hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •