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487468405 = 5109788873
BaseRepresentation
bin11101000011100…
…010110101110101
31020222020221221101
4131003202311311
51444242442110
6120212050101
715036261454
oct3503426565
91228227841
10487468405
11230188256
12117303931
1379cb8158
1448a52b9b
152cbe013a
hex1d0e2d75

487468405 has 8 divisors (see below), whose sum is σ = 585501912. Its totient is φ = 389614848.

The previous prime is 487468367. The next prime is 487468493. The reversal of 487468405 is 504864784.

It can be written as a sum of positive squares in 4 ways, for example, as 54745201 + 432723204 = 7399^2 + 20802^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-487468405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38952 + ... + 49921.

It is an arithmetic number, because the mean of its divisors is an integer number (73187739).

Almost surely, 2487468405 is an apocalyptic number.

It is an amenable number.

487468405 is a deficient number, since it is larger than the sum of its proper divisors (98033507).

487468405 is a wasteful number, since it uses less digits than its factorization.

487468405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89975.

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 487468405 is about 22078.6866683687. The cubic root of 487468405 is about 787.0134553998.

The spelling of 487468405 in words is "four hundred eighty-seven million, four hundred sixty-eight thousand, four hundred five".

Divisors: 1 5 1097 5485 88873 444365 97493681 487468405