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489212854 = 21326837013
BaseRepresentation
bin11101001010001…
…100101110110110
31021002112120212121
4131022030232312
52000214302404
6120313310154
715060145354
oct3512145666
91232476777
10489212854
11231169949
12117a0535a
137a479180
1448d887d4
152ce36e54
hex1d28cbb6

489212854 has 16 divisors (see below), whose sum is σ = 790674192. Its totient is φ = 225674208.

The previous prime is 489212839. The next prime is 489212879. The reversal of 489212854 is 458212984.

It is a self number, because there is not a number n which added to its sum of digits gives 489212854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66252 + ... + 73264.

It is an arithmetic number, because the mean of its divisors is an integer number (49417137).

Almost surely, 2489212854 is an apocalyptic number.

489212854 is a deficient number, since it is larger than the sum of its proper divisors (301461338).

489212854 is a wasteful number, since it uses less digits than its factorization.

489212854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its digits is 184320, while the sum is 43.

The square root of 489212854 is about 22118.1566591794. The cubic root of 489212854 is about 787.9511369548.

The spelling of 489212854 in words is "four hundred eighty-nine million, two hundred twelve thousand, eight hundred fifty-four".

Divisors: 1 2 13 26 2683 5366 7013 14026 34879 69758 91169 182338 18815879 37631758 244606427 489212854