Base | Representation |
---|---|
bin | 11101110101100010010011… |
… | …010110101111100010011111 |
3 | 122012121201201121122021102022 |
4 | 131311202103112233202133 |
5 | 114144421244114240111 |
6 | 1143030410504250355 |
7 | 36432333150133403 |
oct | 3565422326574237 |
9 | 565551647567368 |
10 | 131222313040031 |
11 | 388a2085830574 |
12 | 1287391b1709bb |
13 | 582b298807155 |
14 | 245929dc73103 |
15 | 10285d80ea2db |
hex | 7758935af89f |
131222313040031 has 8 divisors (see below), whose sum is σ = 136318063438464. Its totient is φ = 126180485926560.
The previous prime is 131222313040009. The next prime is 131222313040067. The reversal of 131222313040031 is 130040313222131.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131222313040031 - 230 = 131221239298207 is a prime.
It is a super-2 number, since 2×1312223130400312 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131222313040331) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13480816280 + ... + 13480826013.
It is an arithmetic number, because the mean of its divisors is an integer number (17039757929808).
Almost surely, 2131222313040031 is an apocalyptic number.
131222313040031 is a deficient number, since it is larger than the sum of its proper divisors (5095750398433).
131222313040031 is a wasteful number, since it uses less digits than its factorization.
131222313040031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26961642481.
The product of its (nonzero) digits is 2592, while the sum is 26.
Adding to 131222313040031 its reverse (130040313222131), we get a palindrome (261262626262162).
The spelling of 131222313040031 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirteen million, forty thousand, thirty-one".
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