Base | Representation |
---|---|
bin | 110001101011… |
… | …100001010000 |
3 | 220111122121220 |
4 | 301223201100 |
5 | 11313221222 |
6 | 1143045040 |
7 | 215460561 |
oct | 61534120 |
9 | 26448556 |
10 | 13023312 |
11 | 7395675 |
12 | 4440780 |
13 | 290ca03 |
14 | 1a30168 |
15 | 1223b5c |
hex | c6b850 |
13023312 has 40 divisors (see below), whose sum is σ = 33852000. Its totient is φ = 4314240.
The previous prime is 13023289. The next prime is 13023383. The reversal of 13023312 is 21332031.
It is a junction number, because it is equal to n+sod(n) for n = 13023291 and 13023300.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7939 + ... + 9437.
It is an arithmetic number, because the mean of its divisors is an integer number (846300).
Almost surely, 213023312 is an apocalyptic number.
13023312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13023312 is an abundant number, since it is smaller than the sum of its proper divisors (20828688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13023312 is a wasteful number, since it uses less digits than its factorization.
13023312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1691 (or 1685 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 13023312 is about 3608.7826202197. The cubic root of 13023312 is about 235.2739343668.
Adding to 13023312 its reverse (21332031), we get a palindrome (34355343).
The spelling of 13023312 in words is "thirteen million, twenty-three thousand, three hundred twelve".
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