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13112311330 = 2512371060009
BaseRepresentation
bin11000011011000110…
…11111111000100010
31020211211010102122101
430031203133320202
5203323222430310
610005042201014
7642635543626
oct141543377042
936754112571
1013112311330
115619615638
12265b35316a
13130c736101
148c5643186
1551b23943a
hex30d8dfe22

13112311330 has 16 divisors (see below), whose sum is σ = 23621262840. Its totient is φ = 5240679552.

The previous prime is 13112311307. The next prime is 13112311337. The reversal of 13112311330 is 3311321131.

It can be written as a sum of positive squares in 4 ways, for example, as 10997507161 + 2114804169 = 104869^2 + 45987^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13112311298 and 13112311307.

It is not an unprimeable number, because it can be changed into a prime (13112311337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517635 + ... + 542374.

Almost surely, 213112311330 is an apocalyptic number.

13112311330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13112311330 is a deficient number, since it is larger than the sum of its proper divisors (10508951510).

13112311330 is a wasteful number, since it uses less digits than its factorization.

13112311330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061253.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13112311330 its reverse (3311321131), we get a palindrome (16423632461).

The spelling of 13112311330 in words is "thirteen billion, one hundred twelve million, three hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 1237 2474 6185 12370 1060009 2120018 5300045 10600090 1311231133 2622462266 6556155665 13112311330