Base | Representation |
---|---|
bin | 1111101101111… |
… | …10011110110101 |
3 | 100012002210020022 |
4 | 13312332132311 |
5 | 232223232323 |
6 | 21030014525 |
7 | 3160503533 |
oct | 766763665 |
9 | 305083208 |
10 | 131852213 |
11 | 68477579 |
12 | 381a7445 |
13 | 2141687c |
14 | 13723153 |
15 | b8974c8 |
hex | 7dbe7b5 |
131852213 has 2 divisors, whose sum is σ = 131852214. Its totient is φ = 131852212.
The previous prime is 131852179. The next prime is 131852219. The reversal of 131852213 is 312258131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 121727089 + 10125124 = 11033^2 + 3182^2 .
It is a cyclic number.
It is not a de Polignac number, because 131852213 - 212 = 131848117 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131852219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65926106 + 65926107.
It is an arithmetic number, because the mean of its divisors is an integer number (65926107).
Almost surely, 2131852213 is an apocalyptic number.
It is an amenable number.
131852213 is a deficient number, since it is larger than the sum of its proper divisors (1).
131852213 is an equidigital number, since it uses as much as digits as its factorization.
131852213 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1440, while the sum is 26.
The square root of 131852213 is about 11482.6918882290. The cubic root of 131852213 is about 508.9742461331.
The spelling of 131852213 in words is "one hundred thirty-one million, eight hundred fifty-two thousand, two hundred thirteen".
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