Base | Representation |
---|---|
bin | 11101111000010011111111… |
… | …110100110001101010101101 |
3 | 122020021222012200102220012011 |
4 | 131320103333310301222231 |
5 | 114211033023010212141 |
6 | 1143254203331441221 |
7 | 36452166256425565 |
oct | 3570237764615255 |
9 | 566258180386164 |
10 | 131413111413421 |
11 | 38965a95507482 |
12 | 128a48a9156211 |
13 | 584328466c546 |
14 | 24645ddc55da5 |
15 | 102d553816881 |
hex | 7784ffd31aad |
131413111413421 has 16 divisors (see below), whose sum is σ = 134309508157440. Its totient is φ = 128552599758960.
The previous prime is 131413111413401. The next prime is 131413111413439. The reversal of 131413111413421 is 124314111314131.
It is a cyclic number.
It is not a de Polignac number, because 131413111413421 - 29 = 131413111412909 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131413111413401) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 12172585 + ... + 20273086.
It is an arithmetic number, because the mean of its divisors is an integer number (8394344259840).
Almost surely, 2131413111413421 is an apocalyptic number.
It is an amenable number.
131413111413421 is a deficient number, since it is larger than the sum of its proper divisors (2896396744019).
131413111413421 is a wasteful number, since it uses less digits than its factorization.
131413111413421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32446224.
The product of its digits is 3456, while the sum is 31.
Adding to 131413111413421 its reverse (124314111314131), we get a palindrome (255727222727552).
The spelling of 131413111413421 in words is "one hundred thirty-one trillion, four hundred thirteen billion, one hundred eleven million, four hundred thirteen thousand, four hundred twenty-one".
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