Base | Representation |
---|---|
bin | 110111000111… |
… | …1110000011110 |
3 | 2000101021212112 |
4 | 1232033300132 |
5 | 24344303012 |
6 | 2511234022 |
7 | 500435450 |
oct | 156176036 |
9 | 60337775 |
10 | 28900382 |
11 | 1534a315 |
12 | 9818912 |
13 | 5cab624 |
14 | 3ba42d0 |
15 | 280d122 |
hex | 1b8fc1e |
28900382 has 8 divisors (see below), whose sum is σ = 49543536. Its totient is φ = 12385872.
The previous prime is 28900381. The next prime is 28900393. The reversal of 28900382 is 28300982.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28900381) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032143 + ... + 1032170.
It is an arithmetic number, because the mean of its divisors is an integer number (6192942).
Almost surely, 228900382 is an apocalyptic number.
28900382 is a deficient number, since it is larger than the sum of its proper divisors (20643154).
28900382 is a wasteful number, since it uses less digits than its factorization.
28900382 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2064322.
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 28900382 is about 5375.9075512884. The cubic root of 28900382 is about 306.8794881147.
The spelling of 28900382 in words is "twenty-eight million, nine hundred thousand, three hundred eighty-two".
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