Base | Representation |
---|---|
bin | 110101100011… |
… | …1101011010110 |
3 | 1221211122200122 |
4 | 1223013223112 |
5 | 24142041404 |
6 | 2441511542 |
7 | 460453244 |
oct | 153075326 |
9 | 57748618 |
10 | 28080854 |
11 | 1493a61a |
12 | 94a25b2 |
13 | 5a825b9 |
14 | 3a2d794 |
15 | 26ea3be |
hex | 1ac7ad6 |
28080854 has 16 divisors (see below), whose sum is σ = 44658816. Its totient is φ = 13219200.
The previous prime is 28080853. The next prime is 28080869. The reversal of 28080854 is 45808082.
It is a super-2 number, since 2×280808542 = 1577068722738632, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28080851) 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, 3827 + ... + 8414.
It is an arithmetic number, because the mean of its divisors is an integer number (2791176).
Almost surely, 228080854 is an apocalyptic number.
28080854 is a deficient number, since it is larger than the sum of its proper divisors (16577962).
28080854 is a wasteful number, since it uses less digits than its factorization.
28080854 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12311.
The product of its (nonzero) digits is 20480, while the sum is 35.
The square root of 28080854 is about 5299.1370995663. The cubic root of 28080854 is about 303.9509024472.
The spelling of 28080854 in words is "twenty-eight million, eighty thousand, eight hundred fifty-four".
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