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30044530 = 2543107653
BaseRepresentation
bin111001010011…
…1000101110010
32002112102100101
41302213011302
530142411110
62551543014
7513242245
oct162470562
962472311
1030044530
1115a6099a
12a08aa6a
1362bc339
143dc125c
15298713a
hex1ca7172

30044530 has 32 divisors (see below), whose sum is σ = 55940544. Its totient is φ = 11610816.

The previous prime is 30044527. The next prime is 30044543. The reversal of 30044530 is 3544003.

It is a junction number, because it is equal to n+sod(n) for n = 30044498 and 30044507.

It is an unprimeable number.

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, 45684 + ... + 46336.

It is an arithmetic number, because the mean of its divisors is an integer number (1748142).

Almost surely, 230044530 is an apocalyptic number.

30044530 is a deficient number, since it is larger than the sum of its proper divisors (25896014).

30044530 is a wasteful number, since it uses less digits than its factorization.

30044530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30044530 is about 5481.2890819587. The cubic root of 30044530 is about 310.8769135509.

Adding to 30044530 its reverse (3544003), we get a palindrome (33588533).

The spelling of 30044530 in words is "thirty million, forty-four thousand, five hundred thirty".

Divisors: 1 2 5 10 43 86 107 214 215 430 535 653 1070 1306 3265 4601 6530 9202 23005 28079 46010 56158 69871 139742 140395 280790 349355 698710 3004453 6008906 15022265 30044530