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489004906 = 21324178041
BaseRepresentation
bin11101001001011…
…001111101101010
31021002011000121211
4131021121331222
52000141124111
6120305023334
715055321165
oct3511317552
91232130554
10489004906
11231037695
12117924b4a
137a405620
1448d32adc
152cde5521
hex1d259f6a

489004906 has 16 divisors (see below), whose sum is σ = 793218888. Its totient is φ = 224755200.

The previous prime is 489004897. The next prime is 489004907. The reversal of 489004906 is 609400984.

It can be written as a sum of positive squares in 4 ways, for example, as 298978681 + 190026225 = 17291^2 + 13785^2 .

It is not an unprimeable number, because it can be changed into a prime (489004907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32755 + ... + 45286.

Almost surely, 2489004906 is an apocalyptic number.

489004906 is a deficient number, since it is larger than the sum of its proper divisors (304213982).

489004906 is a wasteful number, since it uses less digits than its factorization.

489004906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78297.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 489004906 is about 22113.4553157122. The cubic root of 489004906 is about 787.8394772527.

The spelling of 489004906 in words is "four hundred eighty-nine million, four thousand, nine hundred six".

Divisors: 1 2 13 26 241 482 3133 6266 78041 156082 1014533 2029066 18807881 37615762 244502453 489004906