Base | Representation |
---|---|
bin | 110110100000… |
… | …1011000001010 |
3 | 1222202222111000 |
4 | 1231001120022 |
5 | 24304014323 |
6 | 2500315430 |
7 | 464630454 |
oct | 155013012 |
9 | 58688430 |
10 | 28579338 |
11 | 15150097 |
12 | 96a2b76 |
13 | 5bc8468 |
14 | 3b1d2d4 |
15 | 2797e43 |
hex | 1b4160a |
28579338 has 32 divisors (see below), whose sum is σ = 63933120. Its totient is φ = 9462960.
The previous prime is 28579333. The next prime is 28579351. The reversal of 28579338 is 83397582.
It is a junction number, because it is equal to n+sod(n) for n = 28579293 and 28579302.
It is not an unprimeable number, because it can be changed into a prime (28579333) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6793 + ... + 10163.
It is an arithmetic number, because the mean of its divisors is an integer number (1997910).
Almost surely, 228579338 is an apocalyptic number.
28579338 is an abundant number, since it is smaller than the sum of its proper divisors (35353782).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28579338 is a wasteful number, since it uses less digits than its factorization.
28579338 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3539 (or 3533 counting only the distinct ones).
The product of its digits is 362880, while the sum is 45.
The square root of 28579338 is about 5345.9646463477. The cubic root of 28579338 is about 305.7389160953.
The spelling of 28579338 in words is "twenty-eight million, five hundred seventy-nine thousand, three hundred thirty-eight".
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