Base | Representation |
---|---|
bin | 110110100001… |
… | …1100000001101 |
3 | 1222210102102111 |
4 | 1231003200031 |
5 | 24304304140 |
6 | 2500424021 |
7 | 464665033 |
oct | 155034015 |
9 | 58712374 |
10 | 28588045 |
11 | 15156692 |
12 | 96a8011 |
13 | 5bcc405 |
14 | 3b22553 |
15 | 279a7ea |
hex | 1b4380d |
28588045 has 16 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 21988800.
The previous prime is 28588031. The next prime is 28588051. The reversal of 28588045 is 54088582.
It is a happy number.
It is not a de Polignac number, because 28588045 - 27 = 28587917 is a prime.
It is a super-3 number, since 3×285880453 (a number of 23 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 28587989 and 28588007.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 27546 + ... + 28564.
It is an arithmetic number, because the mean of its divisors is an integer number (2227680).
Almost surely, 228588045 is an apocalyptic number.
It is an amenable number.
28588045 is a deficient number, since it is larger than the sum of its proper divisors (7054835).
28588045 is a wasteful number, since it uses less digits than its factorization.
28588045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1236.
The product of its (nonzero) digits is 102400, while the sum is 40.
The square root of 28588045 is about 5346.7789368928. The cubic root of 28588045 is about 305.7699618161.
The spelling of 28588045 in words is "twenty-eight million, five hundred eighty-eight thousand, forty-five".
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