Base | Representation |
---|---|
bin | 111101000100011011… |
… | …1010010100110111001 |
3 | 110112111201212011102201 |
4 | 1322020313102212321 |
5 | 4122041133330033 |
6 | 140125225030201 |
7 | 12321620633554 |
oct | 1721067224671 |
9 | 415451764381 |
10 | 131145214393 |
11 | 50689066706 |
12 | 21500325361 |
13 | c4a022659b |
14 | 64c161769b |
15 | 362867b47d |
hex | 1e88dd29b9 |
131145214393 has 2 divisors, whose sum is σ = 131145214394. Its totient is φ = 131145214392.
The previous prime is 131145214351. The next prime is 131145214399. The reversal of 131145214393 is 393412541131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 123378670009 + 7766544384 = 351253^2 + 88128^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131145214393 is a prime.
It is not a weakly prime, because it can be changed into another prime (131145214399) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65572607196 + 65572607197.
It is an arithmetic number, because the mean of its divisors is an integer number (65572607197).
Almost surely, 2131145214393 is an apocalyptic number.
It is an amenable number.
131145214393 is a deficient number, since it is larger than the sum of its proper divisors (1).
131145214393 is an equidigital number, since it uses as much as digits as its factorization.
131145214393 is an evil number, because the sum of its binary digits is even.
The product of its digits is 38880, while the sum is 37.
The spelling of 131145214393 in words is "one hundred thirty-one billion, one hundred forty-five million, two hundred fourteen thousand, three hundred ninety-three".
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