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13203230444 = 223300807611
BaseRepresentation
bin11000100101111100…
…10100111011101100
31021002011012121012222
430102332110323230
5204020011333234
610022051014512
7645121415135
oct142276247354
937064177188
1013203230444
1156659744a8
12268589a438
13132551a4c1
148d374cc8c
155241e842e
hex312f94eec

13203230444 has 6 divisors (see below), whose sum is σ = 23105653284. Its totient is φ = 6601615220.

The previous prime is 13203230437. The next prime is 13203230471. The reversal of 13203230444 is 44403230231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1650403802 + ... + 1650403809.

It is an arithmetic number, because the mean of its divisors is an integer number (3850942214).

Almost surely, 213203230444 is an apocalyptic number.

It is an amenable number.

13203230444 is a deficient number, since it is larger than the sum of its proper divisors (9902422840).

13203230444 is a wasteful number, since it uses less digits than its factorization.

13203230444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300807615 (or 3300807613 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 13203230444 its reverse (44403230231), we get a palindrome (57606460675).

The spelling of 13203230444 in words is "thirteen billion, two hundred three million, two hundred thirty thousand, four hundred forty-four".

Divisors: 1 2 4 3300807611 6601615222 13203230444