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1212302330 = 25121230233
BaseRepresentation
bin100100001000010…
…0100001111111010
310010111011100011022
41020100210033322
54440322133310
6320143502442
742020254061
oct11020441772
93114140138
101212302330
11572349758
12299bb7a22
13164210c75
14b70131d8
157166aa55
hex484243fa

1212302330 has 8 divisors (see below), whose sum is σ = 2182144212. Its totient is φ = 484920928.

The previous prime is 1212302327. The next prime is 1212302339. The reversal of 1212302330 is 332032121.

It can be written as a sum of positive squares in 2 ways, for example, as 1203187969 + 9114361 = 34687^2 + 3019^2 .

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

It is a super-3 number, since 3×12123023303 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212302299 and 1212302308.

It is not an unprimeable number, because it can be changed into a prime (1212302339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60615107 + ... + 60615126.

Almost surely, 21212302330 is an apocalyptic number.

1212302330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212302330 is a deficient number, since it is larger than the sum of its proper divisors (969841882).

1212302330 is a wasteful number, since it uses less digits than its factorization.

1212302330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121230240.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1212302330 is about 34818.1322014838. The cubic root of 1212302330 is about 1066.2776675077.

Adding to 1212302330 its reverse (332032121), we get a palindrome (1544334451).

The spelling of 1212302330 in words is "one billion, two hundred twelve million, three hundred two thousand, three hundred thirty".

Divisors: 1 2 5 10 121230233 242460466 606151165 1212302330