Base | Representation |
---|---|
bin | 11101110101100000011011… |
… | …111110001011101110111010 |
3 | 122012121112120000210001100110 |
4 | 131311200123332023232322 |
5 | 114144403143342110320 |
6 | 1143025440034445150 |
7 | 36432232416421533 |
oct | 3565403376135672 |
9 | 565545500701313 |
10 | 131220310113210 |
11 | 388a1248174a4a |
12 | 128734604337b6 |
13 | 582b039876856 |
14 | 245914dc5568a |
15 | 102851c35a5e0 |
hex | 77581bf8bbba |
131220310113210 has 64 divisors (see below), whose sum is σ = 318485293251840. Its totient is φ = 34596955092480.
The previous prime is 131220310113197. The next prime is 131220310113257. The reversal of 131220310113210 is 12311013022131.
It is a super-3 number, since 3×1312203101132103 (a number of 43 digits) contains 333 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46098780 + ... + 48862440.
It is an arithmetic number, because the mean of its divisors is an integer number (4976332707060).
Almost surely, 2131220310113210 is an apocalyptic number.
131220310113210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131220310113210 is an abundant number, since it is smaller than the sum of its proper divisors (187264983138630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131220310113210 is a wasteful number, since it uses less digits than its factorization.
131220310113210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2781543.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 131220310113210 its reverse (12311013022131), we get a palindrome (143531323135341).
The spelling of 131220310113210 in words is "one hundred thirty-one trillion, two hundred twenty billion, three hundred ten million, one hundred thirteen thousand, two hundred ten".
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