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30112663 = 719373607
BaseRepresentation
bin111001011011…
…1101110010111
32002122212210211
41302313232113
530202101123
62553230251
7513645010
oct162675627
962585724
1030112663
1115aa80a9
12a102387
136314359
143ddc007
15299c40d
hex1cb7b97

30112663 has 16 divisors (see below), whose sum is σ = 36382720. Its totient is φ = 24346656.

The previous prime is 30112657. The next prime is 30112697. The reversal of 30112663 is 36621103.

It is a cyclic number.

It is not a de Polignac number, because 30112663 - 25 = 30112631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49306 + ... + 49912.

It is an arithmetic number, because the mean of its divisors is an integer number (2273920).

Almost surely, 230112663 is an apocalyptic number.

30112663 is a deficient number, since it is larger than the sum of its proper divisors (6270057).

30112663 is a wasteful number, since it uses less digits than its factorization.

30112663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30112663 is about 5487.5006150341. The cubic root of 30112663 is about 311.1117315133. Note that the first 3 decimals are identical.

Adding to 30112663 its reverse (36621103), we get a palindrome (66733766).

The spelling of 30112663 in words is "thirty million, one hundred twelve thousand, six hundred sixty-three".

Divisors: 1 7 19 133 373 607 2611 4249 7087 11533 49609 80731 226411 1584877 4301809 30112663