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487064081 = 769580583
BaseRepresentation
bin11101000010000…
…000001000010001
31020221111102022102
4131002000020101
51444142022311
6120155250145
715032655620
oct3502001021
91227442272
10487064081
1122aa314a9
12117149955
1379ba60ca
14489896b7
152cb6043b
hex1d080211

487064081 has 4 divisors (see below), whose sum is σ = 556644672. Its totient is φ = 417483492.

The previous prime is 487064029. The next prime is 487064099. The reversal of 487064081 is 180460784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 487064081 - 214 = 487047697 is a prime.

It is a super-2 number, since 2×4870640812 = 474462838000749122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (487064021) 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, 34790285 + ... + 34790298.

It is an arithmetic number, because the mean of its divisors is an integer number (139161168).

Almost surely, 2487064081 is an apocalyptic number.

It is an amenable number.

487064081 is a deficient number, since it is larger than the sum of its proper divisors (69580591).

487064081 is an equidigital number, since it uses as much as digits as its factorization.

487064081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69580590.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 487064081 is about 22069.5283366002. The cubic root of 487064081 is about 786.7958026976.

The spelling of 487064081 in words is "four hundred eighty-seven million, sixty-four thousand, eighty-one".

Divisors: 1 7 69580583 487064081