Base | Representation |
---|---|
bin | 11101001000010… |
… | …110011010011101 |
3 | 1021001121222002020 |
4 | 131020112122131 |
5 | 2000103300341 |
6 | 120255050353 |
7 | 15053056422 |
oct | 3510263235 |
9 | 1231558066 |
10 | 488728221 |
11 | 230968823 |
12 | 1178109b9 |
13 | 7a3396c7 |
14 | 48c9dd49 |
15 | 2cd8d566 |
hex | 1d21669d |
488728221 has 8 divisors (see below), whose sum is σ = 651754464. Its totient is φ = 325760400.
The previous prime is 488728199. The next prime is 488728259. The reversal of 488728221 is 122827884.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 488728221 - 214 = 488711837 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (488728021) 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, 11671 + ... + 33371.
It is an arithmetic number, because the mean of its divisors is an integer number (81469308).
Almost surely, 2488728221 is an apocalyptic number.
It is an amenable number.
488728221 is a deficient number, since it is larger than the sum of its proper divisors (163026243).
488728221 is a wasteful number, since it uses less digits than its factorization.
488728221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29211.
The product of its digits is 114688, while the sum is 42.
The square root of 488728221 is about 22107.1983978070. The cubic root of 488728221 is about 787.6908594587.
The spelling of 488728221 in words is "four hundred eighty-eight million, seven hundred twenty-eight thousand, two hundred twenty-one".
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