Base | Representation |
---|---|
bin | 110110110110… |
… | …1000101010010 |
3 | 2000010002001020 |
4 | 1231231011102 |
5 | 24330231404 |
6 | 2504220310 |
7 | 466304412 |
oct | 155550522 |
9 | 60102036 |
10 | 28758354 |
11 | 15262639 |
12 | 976a696 |
13 | 5c5baa1 |
14 | 3b68642 |
15 | 27d0ed9 |
hex | 1b6d152 |
28758354 has 8 divisors (see below), whose sum is σ = 57516720. Its totient is φ = 9586116.
The previous prime is 28758329. The next prime is 28758371. The reversal of 28758354 is 45385782.
It is a sphenic number, since it is the product of 3 distinct primes.
28758354 is an admirable number.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2396524 + ... + 2396535.
It is an arithmetic number, because the mean of its divisors is an integer number (7189590).
Almost surely, 228758354 is an apocalyptic number.
28758354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28758354 is a wasteful number, since it uses less digits than its factorization.
28758354 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4793064.
The product of its digits is 268800, while the sum is 42.
The square root of 28758354 is about 5362.6816053165. The cubic root of 28758354 is about 306.3759529674.
The spelling of 28758354 in words is "twenty-eight million, seven hundred fifty-eight thousand, three hundred fifty-four".
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