Base | Representation |
---|---|
bin | 110011111111… |
… | …001010010111 |
3 | 221122101011210 |
4 | 303333022113 |
5 | 11442044210 |
6 | 1204032503 |
7 | 223556640 |
oct | 63771227 |
9 | 27571153 |
10 | 13628055 |
11 | 7768a61 |
12 | 4692733 |
13 | 2a9204c |
14 | 1b4a6c7 |
15 | 12e2e20 |
hex | cff297 |
13628055 has 32 divisors (see below), whose sum is σ = 25173504. Its totient is φ = 6166656.
The previous prime is 13628039. The next prime is 13628059. The reversal of 13628055 is 55082631.
13628055 = T626 + T627 + ... + T688.
It is not a de Polignac number, because 13628055 - 24 = 13628039 is a prime.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13628059) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10629 + ... + 11841.
It is an arithmetic number, because the mean of its divisors is an integer number (786672).
Almost surely, 213628055 is an apocalyptic number.
13628055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13628055 is a deficient number, since it is larger than the sum of its proper divisors (11545449).
13628055 is a wasteful number, since it uses less digits than its factorization.
13628055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1335.
The product of its (nonzero) digits is 7200, while the sum is 30.
The square root of 13628055 is about 3691.6195632811. The cubic root of 13628055 is about 238.8606588439.
The spelling of 13628055 in words is "thirteen million, six hundred twenty-eight thousand, fifty-five".
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