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487547460 = 223252708597
BaseRepresentation
bin11101000011110…
…110001001000100
31020222101222101100
4131003312021010
51444303004320
6120213500100
715040041111
oct3503661104
91228358340
10487547460
11230231694
12117341630
137a01512a
1448a73908
152cc08790
hex1d0f6244

487547460 has 36 divisors (see below), whose sum is σ = 1478894508. Its totient is φ = 130012608.

The previous prime is 487547453. The next prime is 487547461. The reversal of 487547460 is 64745784.

487547460 is a `hidden beast` number, since 48 + 7 + 547 + 4 + 60 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 296941824 + 190605636 = 17232^2 + 13806^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (487547461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1354119 + ... + 1354478.

It is an arithmetic number, because the mean of its divisors is an integer number (41080403).

Almost surely, 2487547460 is an apocalyptic number.

It is an amenable number.

487547460 is an abundant number, since it is smaller than the sum of its proper divisors (991347048).

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

487547460 is a wasteful number, since it uses less digits than its factorization.

487547460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708612 (or 2708607 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 487547460 is about 22080.4768970238. The cubic root of 487547460 is about 787.0559976343.

The spelling of 487547460 in words is "four hundred eighty-seven million, five hundred forty-seven thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2708597 5417194 8125791 10834388 13542985 16251582 24377373 27085970 32503164 40628955 48754746 54171940 81257910 97509492 121886865 162515820 243773730 487547460