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728358048 = 25331126967
BaseRepresentation
bin101011011010011…
…101110010100000
31212202112102102000
4223122131302200
52442424424143
6200135124000
724022640565
oct5332356240
91782472360
10728358048
11344159200
12183b13600
13b7b8abc2
146ca3a86c
1543e24bd3
hex2b69dca0

728358048 has 144 divisors (see below), whose sum is σ = 2335394880. Its totient is φ = 220682880.

The previous prime is 728358023. The next prime is 728358067. The reversal of 728358048 is 840853827.

728358048 is a `hidden beast` number, since 7 + 28 + 3 + 580 + 48 = 666.

728358048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 728357994 and 728358012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101061 + ... + 108027.

It is an arithmetic number, because the mean of its divisors is an integer number (16218020).

Almost surely, 2728358048 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 728358048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167697440).

728358048 is an abundant number, since it is smaller than the sum of its proper divisors (1607036832).

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

728358048 is a wasteful number, since it uses less digits than its factorization.

728358048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008 (or 6983 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 728358048 is about 26988.1093817259. The cubic root of 728358048 is about 899.7357446399.

The spelling of 728358048 in words is "seven hundred twenty-eight million, three hundred fifty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 66 72 88 96 99 108 121 132 144 176 198 216 242 264 288 297 352 363 396 432 484 528 594 726 792 864 968 1056 1089 1188 1452 1584 1936 2178 2376 2904 3168 3267 3872 4356 4752 5808 6534 6967 8712 9504 11616 13068 13934 17424 20901 26136 27868 34848 41802 52272 55736 62703 76637 83604 104544 111472 125406 153274 167208 188109 222944 229911 250812 306548 334416 376218 459822 501624 613096 668832 689733 752436 843007 919644 1003248 1226192 1379466 1504872 1686014 1839288 2006496 2069199 2452384 2529021 2758932 3009744 3372028 3678576 4138398 5058042 5517864 6019488 6744056 7357152 7587063 8276796 10116084 11035728 13488112 15174126 16553592 20232168 22071456 22761189 26976224 30348252 33107184 40464336 45522378 60696504 66214368 80928672 91044756 121393008 182089512 242786016 364179024 728358048