Base | Representation |
---|---|
bin | 1111100111011… |
… | …11010001001111 |
3 | 100010111122222102 |
4 | 13303233101033 |
5 | 232014102341 |
6 | 20555505315 |
7 | 3150340214 |
oct | 763572117 |
9 | 303448872 |
10 | 131003471 |
11 | 67a47935 |
12 | 37a5823b |
13 | 211aa461 |
14 | 13581b0b |
15 | b77ac9b |
hex | 7cef44f |
131003471 has 2 divisors, whose sum is σ = 131003472. Its totient is φ = 131003470.
The previous prime is 131003459. The next prime is 131003473. The reversal of 131003471 is 174300131.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131003471 - 26 = 131003407 is a prime.
It is a super-3 number, since 3×1310034713 (a number of 25 digits) contains 333 as substring.
Together with 131003473, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131003473) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501735 + 65501736.
It is an arithmetic number, because the mean of its divisors is an integer number (65501736).
Almost surely, 2131003471 is an apocalyptic number.
131003471 is a deficient number, since it is larger than the sum of its proper divisors (1).
131003471 is an equidigital number, since it uses as much as digits as its factorization.
131003471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 20.
The square root of 131003471 is about 11445.6747725942. The cubic root of 131003471 is about 507.8797933594.
The spelling of 131003471 in words is "one hundred thirty-one million, three thousand, four hundred seventy-one".
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