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4248491 = 132231093
BaseRepresentation
bin10000001101001110101011
321222211211112
4100031032223
52041422431
6231020535
751053162
oct20151653
97884745
104248491
112441a55
12150a74b
13b59a00
147c83d9
1558dc2b
hex40d3ab

4248491 has 12 divisors (see below), whose sum is σ = 4804848. Its totient is φ = 3747744.

The previous prime is 4248481. The next prime is 4248539. The reversal of 4248491 is 1948424.

It is a de Polignac number, because none of the positive numbers 2k-4248491 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4248401) 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 11 ways as a sum of consecutive naturals, for example, 3341 + ... + 4433.

It is an arithmetic number, because the mean of its divisors is an integer number (400404).

Almost surely, 24248491 is an apocalyptic number.

4248491 is a deficient number, since it is larger than the sum of its proper divisors (556357).

4248491 is a wasteful number, since it uses less digits than its factorization.

4248491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1129 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 4248491 is about 2061.1867940582. The cubic root of 4248491 is about 161.9614169152.

The spelling of 4248491 in words is "four million, two hundred forty-eight thousand, four hundred ninety-one".

Divisors: 1 13 23 169 299 1093 3887 14209 25139 184717 326807 4248491