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489288884 = 22717474603
BaseRepresentation
bin11101001010011…
…111010010110100
31021002200110011112
4131022133102310
52000224221014
6120315054152
715060613130
oct3512372264
91232613145
10489288884
11231210a87
12117a41358
137a4a4966
1448da83c0
152ce4e73e
hex1d29f4b4

489288884 has 12 divisors (see below), whose sum is σ = 978577824. Its totient is φ = 209695224.

The previous prime is 489288881. The next prime is 489288889. The reversal of 489288884 is 488882984.

489288884 is an admirable number.

It is a super-2 number, since 2×4892888842 = 478807224011930912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489288881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8737274 + ... + 8737329.

It is an arithmetic number, because the mean of its divisors is an integer number (81548152).

Almost surely, 2489288884 is an apocalyptic number.

It is an amenable number.

489288884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

489288884 is a wasteful number, since it uses less digits than its factorization.

489288884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17474614 (or 17474612 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 59.

The square root of 489288884 is about 22119.8753161043. The cubic root of 489288884 is about 787.9919541037.

The spelling of 489288884 in words is "four hundred eighty-nine million, two hundred eighty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 17474603 34949206 69898412 122322221 244644442 489288884