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12424473 = 326012297
BaseRepresentation
bin101111011001…
…010100011001
3212101020011200
4233121110121
511140040343
61122144413
7210414645
oct57312431
925336150
1012424473
117016766
1241b2109
132760279
141915c25
1511564d3
hexbd9519

12424473 has 12 divisors (see below), whose sum is σ = 17984148. Its totient is φ = 8265600.

The previous prime is 12424471. The next prime is 12424481. The reversal of 12424473 is 37442421.

It can be written as a sum of positive squares in 2 ways, for example, as 8311689 + 4112784 = 2883^2 + 2028^2 .

It is not a de Polignac number, because 12424473 - 21 = 12424471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12424471) 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 11 ways as a sum of consecutive naturals, for example, 4261 + ... + 6557.

It is an arithmetic number, because the mean of its divisors is an integer number (1498679).

Almost surely, 212424473 is an apocalyptic number.

It is an amenable number.

12424473 is a deficient number, since it is larger than the sum of its proper divisors (5559675).

12424473 is a wasteful number, since it uses less digits than its factorization.

12424473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2901 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 12424473 is about 3524.8365919571. The cubic root of 12424473 is about 231.6110767251.

Adding to 12424473 its reverse (37442421), we get a palindrome (49866894).

The spelling of 12424473 in words is "twelve million, four hundred twenty-four thousand, four hundred seventy-three".

Divisors: 1 3 9 601 1803 2297 5409 6891 20673 1380497 4141491 12424473