Base | Representation |
---|---|
bin | 11101001010010… |
… | …011111100001011 |
3 | 1021002121002101010 |
4 | 131022103330023 |
5 | 2000221224004 |
6 | 120314055003 |
7 | 15060330423 |
oct | 3512237413 |
9 | 1232532333 |
10 | 489242379 |
11 | 23118a04a |
12 | 117a1a463 |
13 | 7a489742 |
14 | 48d95483 |
15 | 2ce40a89 |
hex | 1d293f0b |
489242379 has 8 divisors (see below), whose sum is σ = 669953680. Its totient is φ = 317346336.
The previous prime is 489242359. The next prime is 489242389. The reversal of 489242379 is 973242984.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 489242379 - 28 = 489242123 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (489242309) 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, 2203684 + ... + 2203905.
It is an arithmetic number, because the mean of its divisors is an integer number (83744210).
Almost surely, 2489242379 is an apocalyptic number.
489242379 is a deficient number, since it is larger than the sum of its proper divisors (180711301).
489242379 is a wasteful number, since it uses less digits than its factorization.
489242379 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4407629.
The product of its digits is 870912, while the sum is 48.
The square root of 489242379 is about 22118.8240871887. The cubic root of 489242379 is about 787.9669881255.
The spelling of 489242379 in words is "four hundred eighty-nine million, two hundred forty-two thousand, three hundred seventy-nine".
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