Base | Representation |
---|---|
bin | 110111000111… |
… | …1111000010011 |
3 | 2000101022120002 |
4 | 1232033320103 |
5 | 24344312013 |
6 | 2511240215 |
7 | 500440064 |
oct | 156177023 |
9 | 60338502 |
10 | 28900883 |
11 | 1534a730 |
12 | 981906b |
13 | 5cab91b |
14 | 3ba456b |
15 | 280d358 |
hex | 1b8fe13 |
28900883 has 8 divisors (see below), whose sum is σ = 31618560. Its totient is φ = 26198280.
The previous prime is 28900841. The next prime is 28900889. The reversal of 28900883 is 38800982.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28900883 - 216 = 28835347 is a prime.
It is a super-2 number, since 2×289008832 = 1670522076359378, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28900889) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458 + ... + 7616.
It is an arithmetic number, because the mean of its divisors is an integer number (3952320).
Almost surely, 228900883 is an apocalyptic number.
28900883 is a deficient number, since it is larger than the sum of its proper divisors (2717677).
28900883 is a wasteful number, since it uses less digits than its factorization.
28900883 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7537.
The product of its (nonzero) digits is 27648, while the sum is 38.
The square root of 28900883 is about 5375.9541478699. The cubic root of 28900883 is about 306.8812613985.
Subtracting 28900883 from its reverse (38800982), we obtain a palindrome (9900099).
The spelling of 28900883 in words is "twenty-eight million, nine hundred thousand, eight hundred eighty-three".
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