Base | Representation |
---|---|
bin | 110101011111… |
… | …0001001100011 |
3 | 1221202200011012 |
4 | 1222332021203 |
5 | 24134314302 |
6 | 2441011135 |
7 | 460231412 |
oct | 152761143 |
9 | 57680135 |
10 | 28041827 |
11 | 14913270 |
12 | 9483aab |
13 | 5a6a8c8 |
14 | 3a1d479 |
15 | 26dda52 |
hex | 1abe263 |
28041827 has 16 divisors (see below), whose sum is σ = 31709664. Its totient is φ = 24576000.
The previous prime is 28041809. The next prime is 28041841. The reversal of 28041827 is 72814082.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-28041827 is a prime.
It is a super-2 number, since 2×280418272 = 1572688122995858, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 28041793 and 28041802.
It is not an unprimeable number, because it can be changed into a prime (28041847) 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, 43427 + ... + 44067.
It is an arithmetic number, because the mean of its divisors is an integer number (1981854).
Almost surely, 228041827 is an apocalyptic number.
28041827 is a deficient number, since it is larger than the sum of its proper divisors (3667837).
28041827 is a wasteful number, since it uses less digits than its factorization.
28041827 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 790.
The product of its (nonzero) digits is 7168, while the sum is 32.
The square root of 28041827 is about 5295.4534272336. The cubic root of 28041827 is about 303.8100260152.
The spelling of 28041827 in words is "twenty-eight million, forty-one thousand, eight hundred twenty-seven".
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