Base | Representation |
---|---|
bin | 111101000111010000… |
… | …1110100110111101111 |
3 | 110112202100200111221222 |
4 | 1322032201310313233 |
5 | 4122240001011423 |
6 | 140142502013555 |
7 | 12324153504041 |
oct | 1721641646757 |
9 | 415670614858 |
10 | 131240250863 |
11 | 50727777a47 |
12 | 215281172bb |
13 | c4b6b1ca97 |
14 | 64d00b5a91 |
15 | 3631ba03c8 |
hex | 1e8e874def |
131240250863 has 2 divisors, whose sum is σ = 131240250864. Its totient is φ = 131240250862.
The previous prime is 131240250833. The next prime is 131240250887. The reversal of 131240250863 is 368052042131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131240250863 - 210 = 131240249839 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131240250833) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65620125431 + 65620125432.
It is an arithmetic number, because the mean of its divisors is an integer number (65620125432).
Almost surely, 2131240250863 is an apocalyptic number.
131240250863 is a deficient number, since it is larger than the sum of its proper divisors (1).
131240250863 is an equidigital number, since it uses as much as digits as its factorization.
131240250863 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 34560, while the sum is 35.
Adding to 131240250863 its reverse (368052042131), we get a palindrome (499292292994).
The spelling of 131240250863 in words is "one hundred thirty-one billion, two hundred forty million, two hundred fifty thousand, eight hundred sixty-three".
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