Base | Representation |
---|---|
bin | 11101001100000… |
… | …011001111000000 |
3 | 1021010110020200212 |
4 | 131030003033000 |
5 | 2000330320430 |
6 | 120331533252 |
7 | 15064236443 |
oct | 3514031700 |
9 | 1233406625 |
10 | 489698240 |
11 | 231470599 |
12 | 117bba228 |
13 | 7a5b9095 |
14 | 4907365a |
15 | 2ced0b95 |
hex | 1d3033c0 |
489698240 has 56 divisors (see below), whose sum is σ = 1185257472. Its totient is φ = 192660480.
The previous prime is 489698201. The next prime is 489698249. The reversal of 489698240 is 42896984.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489698249) 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, 6977 + ... + 32063.
It is an arithmetic number, because the mean of its divisors is an integer number (21165312).
Almost surely, 2489698240 is an apocalyptic number.
489698240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 489698240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592628736).
489698240 is an abundant number, since it is smaller than the sum of its proper divisors (695559232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489698240 is a wasteful number, since it uses less digits than its factorization.
489698240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25165 (or 25155 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 50.
The square root of 489698240 is about 22129.1265078403. The cubic root of 489698240 is about 788.2116466202.
The spelling of 489698240 in words is "four hundred eighty-nine million, six hundred ninety-eight thousand, two hundred forty".
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