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288628248 = 233531032203
BaseRepresentation
bin10001001101000…
…001111000011000
3202010002211112010
4101031001320120
51042342100443
644350145520
710103204526
oct2115017030
9663084463
10288628248
11138a17747
12807b22a0
1347a48a5c
142a493316
151a514733
hex11341e18

288628248 has 64 divisors (see below), whose sum is σ = 742659840. Its totient is φ = 93435264.

The previous prime is 288628243. The next prime is 288628273. The reversal of 288628248 is 842826882.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 288628197 and 288628206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288628243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129915 + ... + 132117.

It is an arithmetic number, because the mean of its divisors is an integer number (11604060).

Almost surely, 2288628248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288628248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371329920).

288628248 is an abundant number, since it is smaller than the sum of its proper divisors (454031592).

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

288628248 is a wasteful number, since it uses less digits than its factorization.

288628248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2364 counting only the distinct ones).

The product of its digits is 786432, while the sum is 48.

The square root of 288628248 is about 16989.0625992136. The cubic root of 288628248 is about 660.8652929774.

The spelling of 288628248 in words is "two hundred eighty-eight million, six hundred twenty-eight thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 53 103 106 159 206 212 309 318 412 424 618 636 824 1236 1272 2203 2472 4406 5459 6609 8812 10918 13218 16377 17624 21836 26436 32754 43672 52872 65508 116759 131016 226909 233518 350277 453818 467036 680727 700554 907636 934072 1361454 1401108 1815272 2722908 2802216 5445816 12026177 24052354 36078531 48104708 72157062 96209416 144314124 288628248