Base | Representation |
---|---|
bin | 1001100011111… |
… | …01110110100101 |
3 | 12120220221200121 |
4 | 10301331312211 |
5 | 131013113034 |
6 | 11543041541 |
7 | 1662515302 |
oct | 461756645 |
9 | 176827617 |
10 | 80207269 |
11 | 413029aa |
12 | 22a402b1 |
13 | 1380382c |
14 | a91c0a9 |
15 | 70951b4 |
hex | 4c7dda5 |
80207269 has 2 divisors, whose sum is σ = 80207270. Its totient is φ = 80207268.
The previous prime is 80207213. The next prime is 80207273. The reversal of 80207269 is 96270208.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 71622369 + 8584900 = 8463^2 + 2930^2 .
It is a cyclic number.
It is not a de Polignac number, because 80207269 - 217 = 80076197 is a prime.
It is a super-2 number, since 2×802072692 = 12866412000876722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80207669) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40103634 + 40103635.
It is an arithmetic number, because the mean of its divisors is an integer number (40103635).
Almost surely, 280207269 is an apocalyptic number.
It is an amenable number.
80207269 is a deficient number, since it is larger than the sum of its proper divisors (1).
80207269 is an equidigital number, since it uses as much as digits as its factorization.
80207269 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12096, while the sum is 34.
The square root of 80207269 is about 8955.8511041665. The cubic root of 80207269 is about 431.2587400315.
The spelling of 80207269 in words is "eighty million, two hundred seven thousand, two hundred sixty-nine".
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