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30331300 = 2252303313
BaseRepresentation
bin111001110110…
…1000110100100
32010001222201111
41303231012210
530231100200
63002034404
7515545306
oct163550644
963058644
1030331300
111613739a
12a1a8a04
13638ca1c
144057976
1529e20ba
hex1ced1a4

30331300 has 18 divisors (see below), whose sum is σ = 65819138. Its totient is φ = 12132480.

The previous prime is 30331261. The next prime is 30331313. The reversal of 30331300 is 313303.

It can be written as a sum of positive squares in 3 ways, for example, as 6360484 + 23970816 = 2522^2 + 4896^2 .

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 5 ways as a sum of consecutive naturals, for example, 151557 + ... + 151756.

Almost surely, 230331300 is an apocalyptic number.

It is an amenable number.

30331300 is an abundant number, since it is smaller than the sum of its proper divisors (35487838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30331300 is a wasteful number, since it uses less digits than its factorization.

30331300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303327 (or 303320 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 13.

The square root of 30331300 is about 5507.3859497951. The cubic root of 30331300 is about 311.8628725691.

Adding to 30331300 its reverse (313303), we get a palindrome (30644603).

The spelling of 30331300 in words is "thirty million, three hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 303313 606626 1213252 1516565 3033130 6066260 7582825 15165650 30331300