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30328269 = 3109163569
BaseRepresentation
bin111001110110…
…0010111001101
32010001211120020
41303230113031
530231001034
63002012353
7515533416
oct163542715
963054506
1030328269
1116135094
12a1a70b9
13638b52a
14405680d
1529e1249
hex1cec5cd

30328269 has 16 divisors (see below), whose sum is σ = 41131200. Its totient is φ = 19875456.

The previous prime is 30328267. The next prime is 30328273. The reversal of 30328269 is 96282303.

It is not a de Polignac number, because 30328269 - 21 = 30328267 is a prime.

It is a super-2 number, since 2×303282692 = 1839607801072722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30328267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53017 + ... + 53585.

It is an arithmetic number, because the mean of its divisors is an integer number (2570700).

Almost surely, 230328269 is an apocalyptic number.

It is an amenable number.

30328269 is a deficient number, since it is larger than the sum of its proper divisors (10802931).

30328269 is a wasteful number, since it uses less digits than its factorization.

30328269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30328269 is about 5507.1107669993. The cubic root of 30328269 is about 311.8524840941.

The spelling of 30328269 in words is "thirty million, three hundred twenty-eight thousand, two hundred sixty-nine".

Divisors: 1 3 109 163 327 489 569 1707 17767 53301 62021 92747 186063 278241 10109423 30328269