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489212604 = 2232176591213
BaseRepresentation
bin11101001010001…
…100101010111100
31021002112120112100
4131022030222330
52000214300404
6120313305100
715060144546
oct3512145274
91232476470
10489212604
11231169741
12117a05190
137a47901a
1448d88696
152ce36d39
hex1d28cabc

489212604 has 72 divisors (see below), whose sum is σ = 1312431120. Its totient is φ = 153119232.

The previous prime is 489212597. The next prime is 489212609. The reversal of 489212604 is 406212984.

489212604 is a `hidden beast` number, since 48 + 9 + 2 + 1 + 2 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489212609) 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, 402702 + ... + 403914.

It is an arithmetic number, because the mean of its divisors is an integer number (18228210).

Almost surely, 2489212604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489212604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656215560).

489212604 is an abundant number, since it is smaller than the sum of its proper divisors (823218516).

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

489212604 is a wasteful number, since it uses less digits than its factorization.

489212604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 489212604 is about 22118.1510077131. The cubic root of 489212604 is about 787.9510027339.

The spelling of 489212604 in words is "four hundred eighty-nine million, two hundred twelve thousand, six hundred four".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 659 1213 1318 1977 2426 2636 3639 3954 4852 5931 7278 7908 10917 11203 11862 14556 20621 21834 22406 23724 33609 41242 43668 44812 61863 67218 82484 100827 123726 134436 185589 201654 247452 371178 403308 742356 799367 1598734 2398101 3197468 4796202 7194303 9592404 13589239 14388606 27178478 28777212 40767717 54356956 81535434 122303151 163070868 244606302 489212604