Base | Representation |
---|---|
bin | 11101010010000… |
… | …101011110010000 |
3 | 1021020102121211122 |
4 | 131102011132100 |
5 | 2001231432042 |
6 | 120425501412 |
7 | 15113546000 |
oct | 3522053620 |
9 | 1236377748 |
10 | 491280272 |
11 | 23235115a |
12 | 118641868 |
13 | 7aa211b2 |
14 | 49366000 |
15 | 2d1e47d2 |
hex | 1d485790 |
491280272 has 40 divisors (see below), whose sum is σ = 1110048000. Its totient is φ = 210546336.
The previous prime is 491280259. The next prime is 491280277. The reversal of 491280272 is 272082194.
It is not an unprimeable number, because it can be changed into a prime (491280277) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39272 + ... + 50247.
It is an arithmetic number, because the mean of its divisors is an integer number (27751200).
Almost surely, 2491280272 is an apocalyptic number.
It is an amenable number.
491280272 is an abundant number, since it is smaller than the sum of its proper divisors (618767728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
491280272 is an equidigital number, since it uses as much as digits as its factorization.
491280272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89548 (or 89528 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 35.
The square root of 491280272 is about 22164.8431530656. The cubic root of 491280272 is about 789.0595399506.
It can be divided in two parts, 4912 and 80272, that added together give a cube (85184 = 443).
The spelling of 491280272 in words is "four hundred ninety-one million, two hundred eighty thousand, two hundred seventy-two".
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