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487081563 = 3257631753
BaseRepresentation
bin11101000010000…
…100011001011011
31020221112022021220
4131002010121123
51444143102223
6120155503123
715033060603
oct3502043133
91227468256
10487081563
1122aa43651
12117157aa3
1379bb1057
1448991c03
152cb656e3
hex1d08465b

487081563 has 8 divisors (see below), whose sum is σ = 651970128. Its totient is φ = 323457024.

The previous prime is 487081561. The next prime is 487081571. The reversal of 487081563 is 365180784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487081563 - 21 = 487081561 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (487081561) 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 7 ways as a sum of consecutive naturals, for example, 315106 + ... + 316647.

It is an arithmetic number, because the mean of its divisors is an integer number (81496266).

Almost surely, 2487081563 is an apocalyptic number.

487081563 is a deficient number, since it is larger than the sum of its proper divisors (164888565).

487081563 is a wasteful number, since it uses less digits than its factorization.

487081563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632013.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 487081563 is about 22069.9243995080. The cubic root of 487081563 is about 786.8052159693.

The spelling of 487081563 in words is "four hundred eighty-seven million, eighty-one thousand, five hundred sixty-three".

Divisors: 1 3 257 771 631753 1895259 162360521 487081563