Base | Representation |
---|---|
bin | 110101111100… |
… | …0000011011010 |
3 | 1222012201111110 |
4 | 1223320003122 |
5 | 24214412002 |
6 | 2450041150 |
7 | 462240033 |
oct | 153700332 |
9 | 58181443 |
10 | 28279002 |
11 | 14a65484 |
12 | 95791b6 |
13 | 5b2184b |
14 | 3a81a8a |
15 | 2738e6c |
hex | 1af80da |
28279002 has 16 divisors (see below), whose sum is σ = 58508640. Its totient is φ = 9101232.
The previous prime is 28278953. The next prime is 28279019. The reversal of 28279002 is 20097282.
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 7 ways as a sum of consecutive naturals, for example, 81088 + ... + 81435.
It is an arithmetic number, because the mean of its divisors is an integer number (3656790).
Almost surely, 228279002 is an apocalyptic number.
28279002 is an abundant number, since it is smaller than the sum of its proper divisors (30229638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28279002 is a wasteful number, since it uses less digits than its factorization.
28279002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162557.
The product of its (nonzero) digits is 4032, while the sum is 30.
The square root of 28279002 is about 5317.8004851630. The cubic root of 28279002 is about 304.6641541981.
The spelling of 28279002 in words is "twenty-eight million, two hundred seventy-nine thousand, two".
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