Base | Representation |
---|---|
bin | 11101110101110101110111… |
… | …011110011001111010010110 |
3 | 122012200201221122011122211101 |
4 | 131311311313132121322112 |
5 | 114200242304422414110 |
6 | 1143044203211100314 |
7 | 36434005551321343 |
oct | 3565656736317226 |
9 | 565621848148741 |
10 | 131243320123030 |
11 | 388aaa85780995 |
12 | 12877a0244169a |
13 | 5830265a2bb8b |
14 | 245a2d3bcb7ca |
15 | 1028e1749613a |
hex | 775d77799e96 |
131243320123030 has 32 divisors (see below), whose sum is σ = 249960007634400. Its totient is φ = 49476620040192.
The previous prime is 131243320122917. The next prime is 131243320123037. The reversal of 131243320123030 is 30321023342131.
It is a super-2 number, since 2×1312433201230302 (a number of 29 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 131243320123030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131243320123037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (31) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789482285 + ... + 1789555624.
It is an arithmetic number, because the mean of its divisors is an integer number (7811250238575).
Almost surely, 2131243320123030 is an apocalyptic number.
131243320123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131243320123030 is a deficient number, since it is larger than the sum of its proper divisors (118716687511370).
131243320123030 is a wasteful number, since it uses less digits than its factorization.
131243320123030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3579038128.
The product of its (nonzero) digits is 7776, while the sum is 28.
Adding to 131243320123030 its reverse (30321023342131), we get a palindrome (161564343465161).
The spelling of 131243320123030 in words is "one hundred thirty-one trillion, two hundred forty-three billion, three hundred twenty million, one hundred twenty-three thousand, thirty".
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