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490228 = 22122557
BaseRepresentation
bin1110111101011110100
3220220110121
41313223310
5111141403
614301324
74111144
oct1675364
9826417
10490228
11305352
121b7844
1314219b
14ca924
159a3bd
hex77af4

490228 has 6 divisors (see below), whose sum is σ = 857906. Its totient is φ = 245112.

The previous prime is 490223. The next prime is 490241. The reversal of 490228 is 822094.

It can be written as a sum of positive squares in only one way, i.e., 438244 + 51984 = 662^2 + 228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61275 + ... + 61282.

2490228 is an apocalyptic number.

It is an amenable number.

490228 is a deficient number, since it is larger than the sum of its proper divisors (367678).

490228 is a wasteful number, since it uses less digits than its factorization.

490228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122561 (or 122559 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 490228 is about 700.1628382027. The cubic root of 490228 is about 78.8495775691.

The spelling of 490228 in words is "four hundred ninety thousand, two hundred twenty-eight".

Divisors: 1 2 4 122557 245114 490228