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6480253 = 132917189
BaseRepresentation
bin11000101110000101111101
3110012020020101
4120232011331
53124332003
6350521101
7106036603
oct30560575
913166211
106480253
11372678a
122206191
13145b790
14c09873
1588011d
hex62e17d

6480253 has 8 divisors (see below), whose sum is σ = 7219800. Its totient is φ = 5775168.

The previous prime is 6480251. The next prime is 6480259. The reversal of 6480253 is 3520846.

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 5139289 = 1158^2 + 2267^2 .

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 6480253 - 21 = 6480251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480251) 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, 8218 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (902475).

Almost surely, 26480253 is an apocalyptic number.

It is an amenable number.

6480253 is a deficient number, since it is larger than the sum of its proper divisors (739547).

6480253 is a wasteful number, since it uses less digits than its factorization.

6480253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17231.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6480253 is about 2545.6341056798. The cubic root of 6480253 is about 186.4363766523.

The spelling of 6480253 in words is "six million, four hundred eighty thousand, two hundred fifty-three".

Divisors: 1 13 29 377 17189 223457 498481 6480253