Base | Representation |
---|---|
bin | 1110111100000010100 |
3 | 220212110100 |
4 | 1313200110 |
5 | 111130432 |
6 | 14254100 |
7 | 4106043 |
oct | 1674024 |
9 | 825410 |
10 | 489492 |
11 | 304843 |
12 | 1b7330 |
13 | 141a53 |
14 | ca55a |
15 | 9a07c |
hex | 77814 |
489492 has 18 divisors (see below), whose sum is σ = 1237418. Its totient is φ = 163152.
The previous prime is 489487. The next prime is 489493. The reversal of 489492 is 294984.
It is a happy number.
489492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 318096 + 171396 = 564^2 + 414^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 13597 = 489492 / (4 + 8 + 9 + 4 + 9 + 2).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489493) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6763 + ... + 6834.
2489492 is an apocalyptic number.
It is an amenable number.
489492 is an abundant number, since it is smaller than the sum of its proper divisors (747926).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489492 is a wasteful number, since it uses less digits than its factorization.
489492 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13607 (or 13602 counting only the distinct ones).
The product of its digits is 20736, while the sum is 36.
The square root of 489492 is about 699.6370487617. The cubic root of 489492 is about 78.8100977380.
The spelling of 489492 in words is "four hundred eighty-nine thousand, four hundred ninety-two".
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