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30329210 = 253032921
BaseRepresentation
bin111001110110…
…0100101111010
32010001212212002
41303230211322
530231013320
63002021002
7515536232
oct163544572
963055762
1030329210
111613586a
12a1a7762
13638baa2
144056cc2
1529e1675
hex1cec97a

30329210 has 8 divisors (see below), whose sum is σ = 54592596. Its totient is φ = 12131680.

The previous prime is 30329209. The next prime is 30329213. The reversal of 30329210 is 1292303.

It can be written as a sum of positive squares in 2 ways, for example, as 29800681 + 528529 = 5459^2 + 727^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30329213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516451 + ... + 1516470.

Almost surely, 230329210 is an apocalyptic number.

30329210 is a deficient number, since it is larger than the sum of its proper divisors (24263386).

30329210 is a wasteful number, since it uses less digits than its factorization.

30329210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032928.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30329210 is about 5507.1962013351. The cubic root of 30329210 is about 311.8557093595.

The spelling of 30329210 in words is "thirty million, three hundred twenty-nine thousand, two hundred ten".

Divisors: 1 2 5 10 3032921 6065842 15164605 30329210