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487171120 = 2456089639
BaseRepresentation
bin11101000010011…
…010010000110000
31020221200212010211
4131002122100300
51444203433440
6120201433504
715033612652
oct3502322060
91227625124
10487171120
1122aaa4967
1211719b894
1379c12a47
14489b66d2
152cb81eea
hex1d09a430

487171120 has 20 divisors (see below), whose sum is σ = 1132673040. Its totient is φ = 194868416.

The previous prime is 487171103. The next prime is 487171129. The reversal of 487171120 is 21171784.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (487171129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044740 + ... + 3044899.

It is an arithmetic number, because the mean of its divisors is an integer number (56633652).

Almost surely, 2487171120 is an apocalyptic number.

487171120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487171120 is an abundant number, since it is smaller than the sum of its proper divisors (645501920).

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

487171120 is a wasteful number, since it uses less digits than its factorization.

487171120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089652 (or 6089646 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 487171120 is about 22071.9532438794. The cubic root of 487171120 is about 786.8534348591.

The spelling of 487171120 in words is "four hundred eighty-seven million, one hundred seventy-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 6089639 12179278 24358556 30448195 48717112 60896390 97434224 121792780 243585560 487171120