Base | Representation |
---|---|
bin | 110100001011… |
… | …111001011111 |
3 | 221202000201221 |
4 | 310023321133 |
5 | 12000231343 |
6 | 1205114211 |
7 | 224165014 |
oct | 64137137 |
9 | 27660657 |
10 | 13680223 |
11 | 77a4177 |
12 | 46b8967 |
13 | 2aaca0b |
14 | 1b6170b |
15 | 13035ed |
hex | d0be5f |
13680223 has 8 divisors (see below), whose sum is σ = 14528592. Its totient is φ = 12836736.
The previous prime is 13680221. The next prime is 13680259. The reversal of 13680223 is 32208631.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13680223 - 21 = 13680221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13680221) 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, 5736 + ... + 7762.
It is an arithmetic number, because the mean of its divisors is an integer number (1816074).
Almost surely, 213680223 is an apocalyptic number.
13680223 is a deficient number, since it is larger than the sum of its proper divisors (848369).
13680223 is a wasteful number, since it uses less digits than its factorization.
13680223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2441.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 13680223 is about 3698.6785478060. The cubic root of 13680223 is about 239.1650558287.
Adding to 13680223 its reverse (32208631), we get a palindrome (45888854).
The spelling of 13680223 in words is "thirteen million, six hundred eighty thousand, two hundred twenty-three".
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