Base | Representation |
---|---|
bin | 11101001010010… |
… | …100100110110101 |
3 | 1021002121020010020 |
4 | 131022110212311 |
5 | 2000221320414 |
6 | 120314115353 |
7 | 15060341403 |
oct | 3512244665 |
9 | 1232536106 |
10 | 489245109 |
11 | 231191101 |
12 | 117a1bb59 |
13 | 7a48aa62 |
14 | 48d96473 |
15 | 2ce417a9 |
hex | 1d2949b5 |
489245109 has 8 divisors (see below), whose sum is σ = 674820960. Its totient is φ = 314916336.
The previous prime is 489245089. The next prime is 489245143. The reversal of 489245109 is 901542984.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 489245109 - 211 = 489243061 is a prime.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489245509) 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, 2811667 + ... + 2811840.
It is an arithmetic number, because the mean of its divisors is an integer number (84352620).
Almost surely, 2489245109 is an apocalyptic number.
It is an amenable number.
489245109 is a deficient number, since it is larger than the sum of its proper divisors (185575851).
489245109 is a wasteful number, since it uses less digits than its factorization.
489245109 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5623539.
The product of its (nonzero) digits is 103680, while the sum is 42.
The square root of 489245109 is about 22118.8857992440. The cubic root of 489245109 is about 787.9684537561.
The spelling of 489245109 in words is "four hundred eighty-nine million, two hundred forty-five thousand, one hundred nine".
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