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30043430 = 253004343
BaseRepresentation
bin111001010011…
…0110100100110
32002112100211122
41302212310212
530142342210
62551533542
7513236114
oct162466446
962470748
1030043430
1115a6008a
12a08a2b2
1362bb9a1
143dc0ab4
152986b55
hex1ca6d26

30043430 has 8 divisors (see below), whose sum is σ = 54078192. Its totient is φ = 12017368.

The previous prime is 30043399. The next prime is 30043439. The reversal of 30043430 is 3434003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30043399 and 30043408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30043439) 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, 1502162 + ... + 1502181.

It is an arithmetic number, because the mean of its divisors is an integer number (6759774).

Almost surely, 230043430 is an apocalyptic number.

30043430 is a deficient number, since it is larger than the sum of its proper divisors (24034762).

30043430 is a wasteful number, since it uses less digits than its factorization.

30043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004350.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 30043430 is about 5481.1887396805. The cubic root of 30043430 is about 310.8731195294.

Adding to 30043430 its reverse (3434003), we get a palindrome (33477433).

The spelling of 30043430 in words is "thirty million, forty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 3004343 6008686 15021715 30043430