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6480469 = 53122273
BaseRepresentation
bin11000101110001001010101
3110012020112101
4120232021111
53124333334
6350522101
7106040332
oct30561125
913166471
106480469
113726966
122206331
13145b8c8
14c09989
15880214
hex62e255

6480469 has 4 divisors (see below), whose sum is σ = 6602796. Its totient is φ = 6358144.

The previous prime is 6480421. The next prime is 6480491. The reversal of 6480469 is 9640846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9640846 = 24820423.

It can be written as a sum of positive squares in 2 ways, for example, as 5130225 + 1350244 = 2265^2 + 1162^2 .

It is a cyclic number.

It is not a de Polignac number, because 6480469 - 211 = 6478421 is a prime.

It is a super-2 number, since 2×64804692 = 83992956919922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61084 + ... + 61189.

It is an arithmetic number, because the mean of its divisors is an integer number (1650699).

Almost surely, 26480469 is an apocalyptic number.

It is an amenable number.

6480469 is a deficient number, since it is larger than the sum of its proper divisors (122327).

6480469 is a wasteful number, since it uses less digits than its factorization.

6480469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122326.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 6480469 is about 2545.6765309049. The cubic root of 6480469 is about 186.4384480637.

The spelling of 6480469 in words is "six million, four hundred eighty thousand, four hundred sixty-nine".

Divisors: 1 53 122273 6480469