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489097028 = 22724615413
BaseRepresentation
bin11101001001110…
…000011101000100
31021002022200222202
4131021300131010
52000202101103
6120311014032
715056153600
oct3511603504
91232280882
10489097028
1123109a922
1211796a318
137a438534
1448d58500
152ce12988
hex1d270744

489097028 has 36 divisors (see below), whose sum is σ = 998005932. Its totient is φ = 209119680.

The previous prime is 489097027. The next prime is 489097051. The reversal of 489097028 is 820790984.

It can be written as a sum of positive squares in 2 ways, for example, as 130827844 + 358269184 = 11438^2 + 18928^2 .

It is not an unprimeable number, because it can be changed into a prime (489097027) 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 in 11 ways as a sum of consecutive naturals, for example, 87650 + ... + 93062.

It is an arithmetic number, because the mean of its divisors is an integer number (27722387).

Almost surely, 2489097028 is an apocalyptic number.

It is an amenable number.

489097028 is an abundant number, since it is smaller than the sum of its proper divisors (508908904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489097028 is a wasteful number, since it uses less digits than its factorization.

489097028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892 (or 5883 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 489097028 is about 22115.5381575941. The cubic root of 489097028 is about 787.8889469618. Note that the first 3 decimals are identical.

The spelling of 489097028 in words is "four hundred eighty-nine million, ninety-seven thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 461 922 1844 3227 5413 6454 10826 12908 21652 22589 37891 45178 75782 90356 151564 265237 530474 1060948 2495393 4990786 9981572 17467751 34935502 69871004 122274257 244548514 489097028