Base | Representation |
---|---|
bin | 110111001011… |
… | …0011111111011 |
3 | 2000102200202020 |
4 | 1232112133323 |
5 | 24401143440 |
6 | 2512005523 |
7 | 500612115 |
oct | 156263773 |
9 | 60380666 |
10 | 28927995 |
11 | 15369038 |
12 | 98308a3 |
13 | 5cbb075 |
14 | 3bb03b5 |
15 | 28163d0 |
hex | 1b967fb |
28927995 has 16 divisors (see below), whose sum is σ = 47070720. Its totient is φ = 15166304.
The previous prime is 28927973. The next prime is 28928021. The reversal of 28927995 is 59972982.
It is not a de Polignac number, because 28927995 - 210 = 28926971 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15459 + ... + 17228.
It is an arithmetic number, because the mean of its divisors is an integer number (2941920).
Almost surely, 228927995 is an apocalyptic number.
28927995 is a deficient number, since it is larger than the sum of its proper divisors (18142725).
28927995 is a wasteful number, since it uses less digits than its factorization.
28927995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32754.
The product of its digits is 816480, while the sum is 51.
The square root of 28927995 is about 5378.4751556552. The cubic root of 28927995 is about 306.9771934661.
The spelling of 28927995 in words is "twenty-eight million, nine hundred twenty-seven thousand, nine hundred ninety-five".
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