Base | Representation |
---|---|
bin | 110111010011… |
… | …0100111101110 |
3 | 2000120001022222 |
4 | 1232212213232 |
5 | 24410302110 |
6 | 2513235342 |
7 | 501305462 |
oct | 156464756 |
9 | 60501288 |
10 | 28994030 |
11 | 1540370a |
12 | 9862b52 |
13 | 6012140 |
14 | 3bca4a2 |
15 | 282ac55 |
hex | 1ba69ee |
28994030 has 32 divisors (see below), whose sum is σ = 58653504. Its totient is φ = 10238976.
The previous prime is 28993999. The next prime is 28994047. The reversal of 28994030 is 3049982.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1859 + ... + 7838.
It is an arithmetic number, because the mean of its divisors is an integer number (1832922).
Almost surely, 228994030 is an apocalyptic number.
28994030 is an abundant number, since it is smaller than the sum of its proper divisors (29659474).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28994030 is a wasteful number, since it uses less digits than its factorization.
28994030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9740.
The product of its (nonzero) digits is 15552, while the sum is 35.
The square root of 28994030 is about 5384.6104780197. The cubic root of 28994030 is about 307.2105986718.
The spelling of 28994030 in words is "twenty-eight million, nine hundred ninety-four thousand, thirty".
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