Base | Representation |
---|---|
bin | 11101000111000… |
… | …011111111010001 |
3 | 1021000222210222002 |
4 | 131013003333101 |
5 | 2000011444414 |
6 | 120243523345 |
7 | 15050152220 |
oct | 3507037721 |
9 | 1230883862 |
10 | 488390609 |
11 | 230758103 |
12 | 117689555 |
13 | 7a24bb35 |
14 | 48c12cb7 |
15 | 2cd234de |
hex | 1d1c3fd1 |
488390609 has 4 divisors (see below), whose sum is σ = 558160704. Its totient is φ = 418620516.
The previous prime is 488390593. The next prime is 488390627. The reversal of 488390609 is 906093884.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 488390609 - 24 = 488390593 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (488390009) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 34885037 + ... + 34885050.
It is an arithmetic number, because the mean of its divisors is an integer number (139540176).
Almost surely, 2488390609 is an apocalyptic number.
It is an amenable number.
488390609 is a deficient number, since it is larger than the sum of its proper divisors (69770095).
488390609 is an equidigital number, since it uses as much as digits as its factorization.
488390609 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69770094.
The product of its (nonzero) digits is 373248, while the sum is 47.
The square root of 488390609 is about 22099.5612852382. The cubic root of 488390609 is about 787.5094395106.
The spelling of 488390609 in words is "four hundred eighty-eight million, three hundred ninety thousand, six hundred nine".
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