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490515171 = 3473478831
BaseRepresentation
bin11101001111001…
…010101011100011
31021011222202022120
4131033022223203
52001032441141
6120401235323
715104211246
oct3517125343
91234882276
10490515171
11231979343
12118332b43
137a813b83
144920725d
152d0e2c66
hex1d3caae3

490515171 has 8 divisors (see below), whose sum is σ = 667935744. Its totient is φ = 320052360.

The previous prime is 490515163. The next prime is 490515173. The reversal of 490515171 is 171515094.

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

It is not a de Polignac number, because 490515171 - 23 = 490515163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490515173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739275 + ... + 1739556.

It is an arithmetic number, because the mean of its divisors is an integer number (83491968).

Almost surely, 2490515171 is an apocalyptic number.

490515171 is a deficient number, since it is larger than the sum of its proper divisors (177420573).

490515171 is a wasteful number, since it uses less digits than its factorization.

490515171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478881.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 490515171 is about 22147.5770909596. The cubic root of 490515171 is about 788.6497101329.

The spelling of 490515171 in words is "four hundred ninety million, five hundred fifteen thousand, one hundred seventy-one".

Divisors: 1 3 47 141 3478831 10436493 163505057 490515171