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489145412 = 22771246049
BaseRepresentation
bin11101001001111…
…100010001000100
31021002102011100202
4131021330101010
52000210123122
6120312030032
715056444630
oct3511742104
91232364322
10489145412
11231123208
12117992318
137a454572
1448d6bdc0
152ce21e92
hex1d27c444

489145412 has 24 divisors (see below), whose sum is σ = 992073600. Its totient is φ = 206680320.

The previous prime is 489145379. The next prime is 489145429. The reversal of 489145412 is 214541984.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 121037 + ... + 125012.

It is an arithmetic number, because the mean of its divisors is an integer number (41336400).

Almost surely, 2489145412 is an apocalyptic number.

It is an amenable number.

489145412 is an abundant number, since it is smaller than the sum of its proper divisors (502928188).

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

489145412 is a wasteful number, since it uses less digits than its factorization.

489145412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246131 (or 246129 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 489145412 is about 22116.6320220779. The cubic root of 489145412 is about 787.9149267842.

The spelling of 489145412 in words is "four hundred eighty-nine million, one hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 71 142 284 497 994 1988 246049 492098 984196 1722343 3444686 6889372 17469479 34938958 69877916 122286353 244572706 489145412