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32424013 = 191706527
BaseRepresentation
bin111101110110…
…0000001001101
32021000022101101
41323230001031
531300032023
63114543101
7542412436
oct173540115
967008341
1032424013
1117336706
12aa37a91
13694340b
14444048d
152ca71ad
hex1eec04d

32424013 has 4 divisors (see below), whose sum is σ = 34130560. Its totient is φ = 30717468.

The previous prime is 32424011. The next prime is 32424017. The reversal of 32424013 is 31042423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31042423 = 55035641.

It is a cyclic number.

It is not a de Polignac number, because 32424013 - 21 = 32424011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1706527 = 32424013 / (3 + 2 + 4 + 2 + 4 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32424011) 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 3 ways as a sum of consecutive naturals, for example, 853245 + ... + 853282.

It is an arithmetic number, because the mean of its divisors is an integer number (8532640).

Almost surely, 232424013 is an apocalyptic number.

It is an amenable number.

32424013 is a deficient number, since it is larger than the sum of its proper divisors (1706547).

32424013 is a wasteful number, since it uses less digits than its factorization.

32424013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706546.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 32424013 is about 5694.2087246605. The cubic root of 32424013 is about 318.8763093929.

Adding to 32424013 its reverse (31042423), we get a palindrome (63466436).

The spelling of 32424013 in words is "thirty-two million, four hundred twenty-four thousand, thirteen".

Divisors: 1 19 1706527 32424013