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417680005 = 5449186049
BaseRepresentation
bin11000111001010…
…100101010000101
31002002221100020211
4120321110222011
51323411230010
6105240155421
713231135651
oct3071245205
91062840224
10417680005
111a4851196
12b7a68b71
13686c1a42
143d687a61
1526a0708a
hex18e54a85

417680005 has 8 divisors (see below), whose sum is σ = 502335000. Its totient is φ = 333398016.

The previous prime is 417679981. The next prime is 417680009. The reversal of 417680005 is 500086714.

It can be written as a sum of positive squares in 4 ways, for example, as 20196036 + 397483969 = 4494^2 + 19937^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 417680005 - 27 = 417679877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417680009) 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, 90780 + ... + 95269.

It is an arithmetic number, because the mean of its divisors is an integer number (62791875).

Almost surely, 2417680005 is an apocalyptic number.

It is an amenable number.

417680005 is a deficient number, since it is larger than the sum of its proper divisors (84654995).

417680005 is a wasteful number, since it uses less digits than its factorization.

417680005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186503.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 417680005 is about 20437.2210684330. The cubic root of 417680005 is about 747.5057914638.

The spelling of 417680005 in words is "four hundred seventeen million, six hundred eighty thousand, five".

Divisors: 1 5 449 2245 186049 930245 83536001 417680005