Base | Representation |
---|---|
bin | 110110100000… |
… | …1100000111110 |
3 | 1222210000020220 |
4 | 1231001200332 |
5 | 24304024102 |
6 | 2500322210 |
7 | 464632221 |
oct | 155014076 |
9 | 58700226 |
10 | 28579902 |
11 | 1515055a |
12 | 96a3366 |
13 | 5bc87b0 |
14 | 3b1d5b8 |
15 | 27981bc |
hex | 1b4183e |
28579902 has 16 divisors (see below), whose sum is σ = 61556880. Its totient is φ = 8793792.
The previous prime is 28579897. The next prime is 28579913. The reversal of 28579902 is 20997582.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183127 + ... + 183282.
It is an arithmetic number, because the mean of its divisors is an integer number (3847305).
Almost surely, 228579902 is an apocalyptic number.
28579902 is an abundant number, since it is smaller than the sum of its proper divisors (32976978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28579902 is a wasteful number, since it uses less digits than its factorization.
28579902 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 366427.
The product of its (nonzero) digits is 90720, while the sum is 42.
The square root of 28579902 is about 5346.0173961558. The cubic root of 28579902 is about 305.7409272874.
The spelling of 28579902 in words is "twenty-eight million, five hundred seventy-nine thousand, nine hundred two".
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