Base | Representation |
---|---|
bin | 101011011001001… |
… | …100100010000111 |
3 | 1212201220111212011 |
4 | 223121030202013 |
5 | 2442333301343 |
6 | 200124035051 |
7 | 24020053342 |
oct | 5331144207 |
9 | 1781814764 |
10 | 728025223 |
11 | 343a51142 |
12 | 183992a87 |
13 | b7aa2573 |
14 | 6c991459 |
15 | 43dab29d |
hex | 2b64c887 |
728025223 has 8 divisors (see below), whose sum is σ = 767059200. Its totient is φ = 689062968.
The previous prime is 728025169. The next prime is 728025227. The reversal of 728025223 is 322520827.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-728025223 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (728025227) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3588 + ... + 38326.
It is an arithmetic number, because the mean of its divisors is an integer number (95882400).
Almost surely, 2728025223 is an apocalyptic number.
728025223 is a deficient number, since it is larger than the sum of its proper divisors (39033977).
728025223 is a wasteful number, since it uses less digits than its factorization.
728025223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35861.
The product of its (nonzero) digits is 13440, while the sum is 31.
The square root of 728025223 is about 26981.9425357034. The cubic root of 728025223 is about 899.5986782737.
The spelling of 728025223 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred twenty-three".
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