Base | Representation |
---|---|
bin | 110110110000… |
… | …0110000001110 |
3 | 2000000111202212 |
4 | 1231200300032 |
5 | 24322122404 |
6 | 2503150422 |
7 | 466004240 |
oct | 155406016 |
9 | 60014685 |
10 | 28707854 |
11 | 152286aa |
12 | 9745412 |
13 | 5c41ac6 |
14 | 3b54090 |
15 | 27c106e |
hex | 1b60c0e |
28707854 has 16 divisors (see below), whose sum is σ = 50911200. Its totient is φ = 11878944.
The previous prime is 28707827. The next prime is 28707857. The reversal of 28707854 is 45870782.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28707857) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34949 + ... + 35760.
It is an arithmetic number, because the mean of its divisors is an integer number (3181950).
Almost surely, 228707854 is an apocalyptic number.
28707854 is a deficient number, since it is larger than the sum of its proper divisors (22203346).
28707854 is a wasteful number, since it uses less digits than its factorization.
28707854 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70747.
The product of its (nonzero) digits is 125440, while the sum is 41.
The square root of 28707854 is about 5357.9710712172. The cubic root of 28707854 is about 306.1965146634.
The spelling of 28707854 in words is "twenty-eight million, seven hundred seven thousand, eight hundred fifty-four".
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