Base | Representation |
---|---|
bin | 110110010100… |
… | …1111010011110 |
3 | 1222121002122110 |
4 | 1230221322132 |
5 | 24242430410 |
6 | 2454254450 |
7 | 464050326 |
oct | 154517236 |
9 | 58532573 |
10 | 28483230 |
11 | 15094966 |
12 | 9657426 |
13 | 5b937a9 |
14 | 3ad6286 |
15 | 2779720 |
hex | 1b29e9e |
28483230 has 16 divisors (see below), whose sum is σ = 68359824. Its totient is φ = 7595520.
The previous prime is 28483183. The next prime is 28483267. The reversal of 28483230 is 3238482.
It is a super-2 number, since 2×284832302 = 1622588782465800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 949441 = 28483230 / (2 + 8 + 4 + 8 + 3 + 2 + 3 + 0).
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, 474691 + ... + 474750.
It is an arithmetic number, because the mean of its divisors is an integer number (4272489).
Almost surely, 228483230 is an apocalyptic number.
28483230 is an abundant number, since it is smaller than the sum of its proper divisors (39876594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28483230 is a wasteful number, since it uses less digits than its factorization.
28483230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 949451.
The product of its (nonzero) digits is 9216, while the sum is 30.
The square root of 28483230 is about 5336.9682404901. The cubic root of 28483230 is about 305.3958132640.
The spelling of 28483230 in words is "twenty-eight million, four hundred eighty-three thousand, two hundred thirty".
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