Base | Representation |
---|---|
bin | 101011011100001… |
… | …100001100000100 |
3 | 1212210101101201000 |
4 | 223130030030010 |
5 | 2443033411434 |
6 | 200152533300 |
7 | 24026533131 |
oct | 5334141404 |
9 | 1783341630 |
10 | 728810244 |
11 | 344437a18 |
12 | 1840b1230 |
13 | b7cb8986 |
14 | 6cb17588 |
15 | 43eb3b99 |
hex | 2b70c304 |
728810244 has 48 divisors (see below), whose sum is σ = 1921550400. Its totient is φ = 238817088.
The previous prime is 728810239. The next prime is 728810263. The reversal of 728810244 is 442018827.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 728810199 and 728810208.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50817 + ... + 63560.
It is an arithmetic number, because the mean of its divisors is an integer number (40032300).
Almost surely, 2728810244 is an apocalyptic number.
It is an amenable number.
728810244 is an abundant number, since it is smaller than the sum of its proper divisors (1192740156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
728810244 is a wasteful number, since it uses less digits than its factorization.
728810244 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114449 (or 114441 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 728810244 is about 26996.4857712999. The cubic root of 728810244 is about 899.9219043347.
The spelling of 728810244 in words is "seven hundred twenty-eight million, eight hundred ten thousand, two hundred forty-four".
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