Base | Representation |
---|---|
bin | 110010000100… |
… | …001101111110 |
3 | 220200210101210 |
4 | 302010031332 |
5 | 11324440403 |
6 | 1145145250 |
7 | 216361533 |
oct | 62041576 |
9 | 26623353 |
10 | 13124478 |
11 | 7454684 |
12 | 448b226 |
13 | 2946a83 |
14 | 1a58d8a |
15 | 1243b03 |
hex | c8437e |
13124478 has 16 divisors (see below), whose sum is σ = 27630720. Its totient is φ = 4144536.
The previous prime is 13124437. The next prime is 13124483. The reversal of 13124478 is 87442131.
13124478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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, 57450 + ... + 57677.
It is an arithmetic number, because the mean of its divisors is an integer number (1726920).
Almost surely, 213124478 is an apocalyptic number.
13124478 is an abundant number, since it is smaller than the sum of its proper divisors (14506242).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13124478 is a wasteful number, since it uses less digits than its factorization.
13124478 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115151.
The product of its digits is 5376, while the sum is 30.
The square root of 13124478 is about 3622.7721429866. The cubic root of 13124478 is about 235.8815718172.
The spelling of 13124478 in words is "thirteen million, one hundred twenty-four thousand, four hundred seventy-eight".
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