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30040413 = 3134118787
BaseRepresentation
bin111001010011…
…0000101011101
32002112012200220
41302212011131
530142243123
62551511553
7513224244
oct162460535
962465626
1030040413
1115a58897
12a0885b9
1362ba4c0
143dbd95b
152985ce3
hex1ca615d

30040413 has 16 divisors (see below), whose sum is σ = 44189376. Its totient is φ = 18034560.

The previous prime is 30040403. The next prime is 30040427. The reversal of 30040413 is 31404003.

It is not a de Polignac number, because 30040413 - 24 = 30040397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30040392 and 30040401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040403) 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 15 ways as a sum of consecutive naturals, for example, 7795 + ... + 10992.

It is an arithmetic number, because the mean of its divisors is an integer number (2761836).

Almost surely, 230040413 is an apocalyptic number.

It is an amenable number.

30040413 is a deficient number, since it is larger than the sum of its proper divisors (14148963).

30040413 is a wasteful number, since it uses less digits than its factorization.

30040413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18844.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30040413 is about 5480.9135187485. The cubic root of 30040413 is about 310.8627130878.

Adding to 30040413 its reverse (31404003), we get a palindrome (61444416).

The spelling of 30040413 in words is "thirty million, forty thousand, four hundred thirteen".

Divisors: 1 3 13 39 41 123 533 1599 18787 56361 244231 732693 770267 2310801 10013471 30040413