Base | Representation |
---|---|
bin | 110110100010… |
… | …0000110010101 |
3 | 1222210112202212 |
4 | 1231010012111 |
5 | 24304343420 |
6 | 2500443205 |
7 | 465005120 |
oct | 155040625 |
9 | 58715685 |
10 | 28590485 |
11 | 15158500 |
12 | 96a9505 |
13 | 5c00561 |
14 | 3b233b7 |
15 | 279b3c5 |
hex | 1b44195 |
28590485 has 48 divisors (see below), whose sum is σ = 44381568. Its totient is φ = 17297280.
The previous prime is 28590461. The next prime is 28590487. The reversal of 28590485 is 58409582.
28590485 = T260 + T261 + ... + T573.
It is not a de Polignac number, because 28590485 - 216 = 28524949 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28590487) by changing a digit.
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 47 ways as a sum of consecutive naturals, for example, 182027 + ... + 182183.
It is an arithmetic number, because the mean of its divisors is an integer number (924616).
Almost surely, 228590485 is an apocalyptic number.
It is an amenable number.
28590485 is a deficient number, since it is larger than the sum of its proper divisors (15791083).
28590485 is a wasteful number, since it uses less digits than its factorization.
28590485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 234 (or 223 counting only the distinct ones).
The product of its (nonzero) digits is 115200, while the sum is 41.
The square root of 28590485 is about 5347.0071067841. The cubic root of 28590485 is about 305.7786607610.
The spelling of 28590485 in words is "twenty-eight million, five hundred ninety thousand, four hundred eighty-five".
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