Base | Representation |
---|---|
bin | 110101100101… |
… | …1010000001101 |
3 | 1221212101210010 |
4 | 1223023100031 |
5 | 24143024001 |
6 | 2442103433 |
7 | 460544040 |
oct | 153132015 |
9 | 57771703 |
10 | 28095501 |
11 | 1494a625 |
12 | 94aab79 |
13 | 5a89175 |
14 | 3a34c57 |
15 | 26ee8d6 |
hex | 1acb40d |
28095501 has 16 divisors (see below), whose sum is σ = 42983424. Its totient is φ = 15990384.
The previous prime is 28095499. The next prime is 28095521. The reversal of 28095501 is 10559082.
It is not a de Polignac number, because 28095501 - 21 = 28095499 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28095521) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2980 + ... + 8066.
It is an arithmetic number, because the mean of its divisors is an integer number (2686464).
Almost surely, 228095501 is an apocalyptic number.
28095501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
28095501 is a deficient number, since it is larger than the sum of its proper divisors (14887923).
28095501 is a wasteful number, since it uses less digits than its factorization.
28095501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5360.
The product of its (nonzero) digits is 3600, while the sum is 30.
The square root of 28095501 is about 5300.5189368589. The cubic root of 28095501 is about 304.0037402875.
The spelling of 28095501 in words is "twenty-eight million, ninety-five thousand, five hundred one".
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