Base | Representation |
---|---|
bin | 101011011001010… |
… | …011111010111000 |
3 | 1212201222001100210 |
4 | 223121103322320 |
5 | 2442340233410 |
6 | 200124431120 |
7 | 24020240505 |
oct | 5331237270 |
9 | 1781861323 |
10 | 728055480 |
11 | 343a71949 |
12 | 1839a84a0 |
13 | b7ab3279 |
14 | 6c99c4ac |
15 | 43db5220 |
hex | 2b653eb8 |
728055480 has 64 divisors (see below), whose sum is σ = 2186064000. Its totient is φ = 193979520.
The previous prime is 728055479. The next prime is 728055539. The reversal of 728055480 is 84550827.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202095 + ... + 205665.
It is an arithmetic number, because the mean of its divisors is an integer number (34157250).
Almost surely, 2728055480 is an apocalyptic number.
It is an amenable number.
728055480 is an abundant number, since it is smaller than the sum of its proper divisors (1458008520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
728055480 is a wasteful number, since it uses less digits than its factorization.
728055480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5284 (or 5280 counting only the distinct ones).
The product of its (nonzero) digits is 89600, while the sum is 39.
The square root of 728055480 is about 26982.5032196792. The cubic root of 728055480 is about 899.6111406533.
The spelling of 728055480 in words is "seven hundred twenty-eight million, fifty-five thousand, four hundred eighty".
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