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8428230 = 2325372531
BaseRepresentation
bin100000001001…
…101011000110
3120212012100200
4200021223012
54124200410
6500351330
7131432046
oct40115306
916765320
108428230
114837288
1229a5546
131991325
141195726
15b173c0
hex809ac6

8428230 has 48 divisors (see below), whose sum is σ = 22514544. Its totient is φ = 2185920.

The previous prime is 8428213. The next prime is 8428237. The reversal of 8428230 is 328248.

8428230 is a `hidden beast` number, since 8 + 428 + 230 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8428194 and 8428203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8428237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2065 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (469053).

Almost surely, 28428230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8428230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11257272).

8428230 is an abundant number, since it is smaller than the sum of its proper divisors (14086314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8428230 is a wasteful number, since it uses less digits than its factorization.

8428230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8428230 is about 2903.1414019989. The cubic root of 8428230 is about 203.5067379200.

The spelling of 8428230 in words is "eight million, four hundred twenty-eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 2531 3330 5062 7593 12655 15186 22779 25310 37965 45558 75930 93647 113895 187294 227790 280941 468235 561882 842823 936470 1404705 1685646 2809410 4214115 8428230