Base | Representation |
---|---|
bin | 11101001011010… |
… | …100000111011101 |
3 | 1021010002102221220 |
4 | 131023110013131 |
5 | 2000303131440 |
6 | 120323443553 |
7 | 15062503665 |
oct | 3513240735 |
9 | 1233072856 |
10 | 489505245 |
11 | 231349599 |
12 | 117b265b9 |
13 | 7a54c298 |
14 | 490231a5 |
15 | 2ce938d0 |
hex | 1d2d41dd |
489505245 has 8 divisors (see below), whose sum is σ = 783208416. Its totient is φ = 261069456.
The previous prime is 489505243. The next prime is 489505253. The reversal of 489505245 is 542505984.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 489505245 - 21 = 489505243 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 junction number, because it is equal to n+sod(n) for n = 489505197 and 489505206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489505243) 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, 16316827 + ... + 16316856.
It is an arithmetic number, because the mean of its divisors is an integer number (97901052).
Almost surely, 2489505245 is an apocalyptic number.
It is an amenable number.
489505245 is a deficient number, since it is larger than the sum of its proper divisors (293703171).
489505245 is a wasteful number, since it uses less digits than its factorization.
489505245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32633691.
The product of its (nonzero) digits is 288000, while the sum is 42.
The square root of 489505245 is about 22124.7654224853. The cubic root of 489505245 is about 788.1080856359.
The spelling of 489505245 in words is "four hundred eighty-nine million, five hundred five thousand, two hundred forty-five".
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