Base | Representation |
---|---|
bin | 110110111111… |
… | …0010101110101 |
3 | 2000020200000102 |
4 | 1231332111311 |
5 | 24340012140 |
6 | 2505523445 |
7 | 500020460 |
oct | 155762565 |
9 | 60220012 |
10 | 28829045 |
11 | 15300763 |
12 | 97a3585 |
13 | 5c8500b |
14 | 3b862d7 |
15 | 27e6e15 |
hex | 1b7e575 |
28829045 has 16 divisors (see below), whose sum is σ = 40901760. Its totient is φ = 19086144.
The previous prime is 28829033. The next prime is 28829057. The reversal of 28829045 is 54092882.
It is an interprime number because it is at equal distance from previous prime (28829033) and next prime (28829057).
It is not a de Polignac number, because 28829045 - 24 = 28829029 is a prime.
It is a super-2 number, since 2×288290452 = 1662227671224050, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13187 + ... + 15216.
It is an arithmetic number, because the mean of its divisors is an integer number (2556360).
Almost surely, 228829045 is an apocalyptic number.
It is an amenable number.
28829045 is a deficient number, since it is larger than the sum of its proper divisors (12072715).
28829045 is a wasteful number, since it uses less digits than its factorization.
28829045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28444.
The product of its (nonzero) digits is 46080, while the sum is 38.
The square root of 28829045 is about 5369.2685721614. The cubic root of 28829045 is about 306.6267821212.
The spelling of 28829045 in words is "twenty-eight million, eight hundred twenty-nine thousand, forty-five".
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