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13113131300 = 2252269487477
BaseRepresentation
bin11000011011001101…
…01000000100100100
31020211212200002102122
430031212220010210
5203323430200200
610005111525112
7642645530333
oct141546500444
936755602378
1013113131300
11561a0256a5
12265b689798
13130c9623b9
148c57b7d1a
1551b34c385
hex30d9a8124

13113131300 has 36 divisors (see below), whose sum is σ = 28561336020. Its totient is φ = 5225742720.

The previous prime is 13113131287. The next prime is 13113131327. The reversal of 13113131300 is 313131131.

It can be written as a sum of positive squares in 6 ways, for example, as 708517924 + 12404613376 = 26618^2 + 111376^2 .

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 11 ways as a sum of consecutive naturals, for example, 216839 + ... + 270638.

It is an arithmetic number, because the mean of its divisors is an integer number (793370445).

Almost surely, 213113131300 is an apocalyptic number.

13113131300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113131300 is an abundant number, since it is smaller than the sum of its proper divisors (15448204720).

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

13113131300 is a wasteful number, since it uses less digits than its factorization.

13113131300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487760 (or 487753 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 13113131300 its reverse (313131131), we get a palindrome (13426262431).

The spelling of 13113131300 in words is "thirteen billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 269 538 1076 1345 2690 5380 6725 13450 26900 487477 974954 1949908 2437385 4874770 9749540 12186925 24373850 48747700 131131313 262262626 524525252 655656565 1311313130 2622626260 3278282825 6556565650 13113131300