Base | Representation |
---|---|
bin | 1111100000111… |
… | …00000101100111 |
3 | 100001212201102101 |
4 | 13300130011213 |
5 | 231303412341 |
6 | 20525152531 |
7 | 3140105311 |
oct | 760340547 |
9 | 301781371 |
10 | 130138471 |
11 | 67506a61 |
12 | 376bb747 |
13 | 20c66818 |
14 | 133d87b1 |
15 | b659831 |
hex | 7c1c167 |
130138471 has 2 divisors, whose sum is σ = 130138472. Its totient is φ = 130138470.
The previous prime is 130138447. The next prime is 130138493. The reversal of 130138471 is 174831031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130138471 - 27 = 130138343 is a prime.
It is a super-3 number, since 3×1301384713 (a number of 25 digits) contains 333 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130138271) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65069235 + 65069236.
It is an arithmetic number, because the mean of its divisors is an integer number (65069236).
Almost surely, 2130138471 is an apocalyptic number.
130138471 is a deficient number, since it is larger than the sum of its proper divisors (1).
130138471 is an equidigital number, since it uses as much as digits as its factorization.
130138471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2016, while the sum is 28.
The square root of 130138471 is about 11407.8249898918. The cubic root of 130138471 is about 506.7595011583.
It can be divided in two parts, 130 and 138471, that added together give a triangular number (138601 = T526).
The spelling of 130138471 in words is "one hundred thirty million, one hundred thirty-eight thousand, four hundred seventy-one".
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