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489221508 = 22340768459
BaseRepresentation
bin11101001010001…
…110110110000100
31021002120000202010
4131022032312010
52000220042013
6120313414220
715060212526
oct3512166604
91232500663
10489221508
112311753a6
12117a0a370
137a4800a9
1448d8ba16
152ce397c3
hex1d28ed84

489221508 has 12 divisors (see below), whose sum is σ = 1141516880. Its totient is φ = 163073832.

The previous prime is 489221489. The next prime is 489221521. The reversal of 489221508 is 805122984.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20384218 + ... + 20384241.

Almost surely, 2489221508 is an apocalyptic number.

It is an amenable number.

489221508 is an abundant number, since it is smaller than the sum of its proper divisors (652295372).

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

489221508 is a wasteful number, since it uses less digits than its factorization.

489221508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40768466 (or 40768464 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 489221508 is about 22118.3522894451. The cubic root of 489221508 is about 787.9557831185.

The spelling of 489221508 in words is "four hundred eighty-nine million, two hundred twenty-one thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 40768459 81536918 122305377 163073836 244610754 489221508