Base | Representation |
---|---|
bin | 1001111010001… |
… | …11111111100101 |
3 | 12210102120012101 |
4 | 10331013333211 |
5 | 132240214024 |
6 | 12125452101 |
7 | 2026420324 |
oct | 475077745 |
9 | 183376171 |
10 | 83132389 |
11 | 42a2065a |
12 | 23a11031 |
13 | 142b9082 |
14 | b0800bb |
15 | 7471c44 |
hex | 4f47fe5 |
83132389 has 2 divisors, whose sum is σ = 83132390. Its totient is φ = 83132388.
The previous prime is 83132369. The next prime is 83132417. The reversal of 83132389 is 98323138.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 73102500 + 10029889 = 8550^2 + 3167^2 .
It is a cyclic number.
It is not a de Polignac number, because 83132389 - 29 = 83131877 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (83132339) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41566194 + 41566195.
It is an arithmetic number, because the mean of its divisors is an integer number (41566195).
Almost surely, 283132389 is an apocalyptic number.
It is an amenable number.
83132389 is a deficient number, since it is larger than the sum of its proper divisors (1).
83132389 is an equidigital number, since it uses as much as digits as its factorization.
83132389 is an evil number, because the sum of its binary digits is even.
The product of its digits is 31104, while the sum is 37.
The square root of 83132389 is about 9117.6964744391. The cubic root of 83132389 is about 436.4388677095.
It can be divided in two parts, 83132 and 389, that added together give a 4-th power (83521 = 174).
The spelling of 83132389 in words is "eighty-three million, one hundred thirty-two thousand, three hundred eighty-nine".
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