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13112011200808 = 2313126077030777
BaseRepresentation
bin1011111011001110000011…
…0001010001100100101000
31201102111101121100002111101
42332303200301101210220
53204311344331411213
643515324053211144
72522211601164142
oct276634061214450
951374347302441
1013112011200808
1141a5855547833
121579242030ab4
137415c3a51970
143348a637bc92
1517b118105bdd
hexbece0c51928

13112011200808 has 16 divisors (see below), whose sum is σ = 26476176463380. Its totient is φ = 6051697477248.

The previous prime is 13112011200791. The next prime is 13112011200809. The reversal of 13112011200808 is 80800211021131.

It can be written as a sum of positive squares in 2 ways, for example, as 10854270554724 + 2257740646084 = 3294582^2 + 1502578^2 .

It is a super-2 number, since 2×131120112008082 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13112011200809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63038515285 + ... + 63038515492.

Almost surely, 213112011200808 is an apocalyptic number.

It is an amenable number.

13112011200808 is an abundant number, since it is smaller than the sum of its proper divisors (13364165262572).

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

13112011200808 is a wasteful number, since it uses less digits than its factorization.

13112011200808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126077030796 (or 126077030792 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 28.

Adding to 13112011200808 its reverse (80800211021131), we get a palindrome (93912222221939).

The spelling of 13112011200808 in words is "thirteen trillion, one hundred twelve billion, eleven million, two hundred thousand, eight hundred eight".

Divisors: 1 2 4 8 13 26 52 104 126077030777 252154061554 504308123108 1008616246216 1639001400101 3278002800202 6556005600404 13112011200808