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489304863 = 321727111801
BaseRepresentation
bin11101001010100…
…011001100011111
31021002201021002100
4131022203030133
52000230223423
6120315300143
715061010535
oct3512431437
91232637070
10489304863
11231221a93
12117a4a653
137a4ac008
1448db0155
152ce54343
hex1d2a331f

489304863 has 24 divisors (see below), whose sum is σ = 751173696. Its totient is φ = 305856000.

The previous prime is 489304861. The next prime is 489304867. The reversal of 489304863 is 368403984.

It is not a de Polignac number, because 489304863 - 21 = 489304861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489304861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35563 + ... + 47363.

It is an arithmetic number, because the mean of its divisors is an integer number (31298904).

Almost surely, 2489304863 is an apocalyptic number.

489304863 is a deficient number, since it is larger than the sum of its proper divisors (261868833).

489304863 is a wasteful number, since it uses less digits than its factorization.

489304863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12095 (or 12092 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 489304863 is about 22120.2365041606. The cubic root of 489304863 is about 788.0005319853. Note that the first 3 decimals are identical.

The spelling of 489304863 in words is "four hundred eighty-nine million, three hundred four thousand, eight hundred sixty-three".

Divisors: 1 3 9 17 51 153 271 813 2439 4607 11801 13821 35403 41463 106209 200617 601851 1805553 3198071 9594213 28782639 54367207 163101621 489304863