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489290 = 25113433
BaseRepresentation
bin1110111011101001010
3220212011212
41313131022
5111124130
614253122
74105334
oct1673512
9825155
10489290
1130467a
121b71a2
13141929
14ca454
1599e95
hex7774a

489290 has 16 divisors (see below), whose sum is σ = 890568. Its totient is φ = 193536.

The previous prime is 489283. The next prime is 489299. The reversal of 489290 is 92984.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 351649 = 371^2 + 593^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489290.

It is not an unprimeable number, because it can be changed into a prime (489299) 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, 914 + ... + 1346.

2489290 is an apocalyptic number.

489290 is a deficient number, since it is larger than the sum of its proper divisors (401278).

489290 is a wasteful number, since it uses less digits than its factorization.

489290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 489290 is about 699.4926732997. The cubic root of 489290 is about 78.7992553203.

The spelling of 489290 in words is "four hundred eighty-nine thousand, two hundred ninety".

Divisors: 1 2 5 10 113 226 433 565 866 1130 2165 4330 48929 97858 244645 489290