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538842248 = 23731378389
BaseRepresentation
bin100000000111100…
…001010010001000
31101112221000121022
4200013201102020
52100420422443
6125245132012
716232040440
oct4007412210
91345830538
10538842248
1125718717a
1213055a008
1387834989
14517c7120
153248be68
hex201e1488

538842248 has 64 divisors (see below), whose sum is σ = 1224268800. Its totient is φ = 217416960.

The previous prime is 538842247. The next prime is 538842253. The reversal of 538842248 is 842248835.

It is a junction number, because it is equal to n+sod(n) for n = 538842199 and 538842208.

It is not an unprimeable number, because it can be changed into a prime (538842247) 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, 60038 + ... + 68426.

It is an arithmetic number, because the mean of its divisors is an integer number (19129200).

Almost surely, 2538842248 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 538842248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612134400).

538842248 is an abundant number, since it is smaller than the sum of its proper divisors (685426552).

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

538842248 is a wasteful number, since it uses less digits than its factorization.

538842248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8466 counting only the distinct ones).

The product of its digits is 491520, while the sum is 44.

The square root of 538842248 is about 23212.9758540347. The cubic root of 538842248 is about 813.7429014571.

The spelling of 538842248 in words is "five hundred thirty-eight million, eight hundred forty-two thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 31 37 56 62 74 124 148 217 248 259 296 434 518 868 1036 1147 1736 2072 2294 4588 8029 8389 9176 16058 16778 32116 33556 58723 64232 67112 117446 234892 260059 310393 469784 520118 620786 1040236 1241572 1820413 2080472 2172751 2483144 3640826 4345502 7281652 8691004 9622183 14563304 17382008 19244366 38488732 67355281 76977464 134710562 269421124 538842248