Base | Representation |
---|---|
bin | 110010011010… |
… | …010001111100 |
3 | 220212101100200 |
4 | 302122101330 |
5 | 11340333334 |
6 | 1151123500 |
7 | 220216146 |
oct | 62322174 |
9 | 26771320 |
10 | 13214844 |
11 | 7506565 |
12 | 4513590 |
13 | 2978c46 |
14 | 1a7dc96 |
15 | 1260799 |
hex | c9a47c |
13214844 has 36 divisors (see below), whose sum is σ = 33535320. Its totient is φ = 4387680.
The previous prime is 13214843. The next prime is 13214863. The reversal of 13214844 is 44841231.
13214844 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13214843) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11362 + ... + 12470.
Almost surely, 213214844 is an apocalyptic number.
It is an amenable number.
13214844 is an abundant number, since it is smaller than the sum of its proper divisors (20320476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13214844 is a wasteful number, since it uses less digits than its factorization.
13214844 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1450 (or 1445 counting only the distinct ones).
The product of its digits is 3072, while the sum is 27.
The square root of 13214844 is about 3635.2226891898. Note that the first 3 decimals coincide. The cubic root of 13214844 is about 236.4217060300.
It can be divided in two parts, 13 and 214844, that multiplied together give a palindrome (2792972).
The spelling of 13214844 in words is "thirteen million, two hundred fourteen thousand, eight hundred forty-four".
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