Base | Representation |
---|---|
bin | 1001100101011… |
… | …11111001101111 |
3 | 12121022100220021 |
4 | 10302233321233 |
5 | 131041143041 |
6 | 11551303011 |
7 | 1664331052 |
oct | 462577157 |
9 | 177270807 |
10 | 80412271 |
11 | 41432a25 |
12 | 22b1aa67 |
13 | 13875c34 |
14 | a972a99 |
15 | 70d5cd1 |
hex | 4cafe6f |
80412271 has 2 divisors, whose sum is σ = 80412272. Its totient is φ = 80412270.
The previous prime is 80412259. The next prime is 80412281. The reversal of 80412271 is 17221408.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 80412271 - 217 = 80281199 is a prime.
It is a super-2 number, since 2×804122712 = 12932266654754882, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80412251) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40206135 + 40206136.
It is an arithmetic number, because the mean of its divisors is an integer number (40206136).
Almost surely, 280412271 is an apocalyptic number.
80412271 is a deficient number, since it is larger than the sum of its proper divisors (1).
80412271 is an equidigital number, since it uses as much as digits as its factorization.
80412271 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 896, while the sum is 25.
The square root of 80412271 is about 8967.2889437109. The cubic root of 80412271 is about 431.6258459500.
Adding to 80412271 its reverse (17221408), we get a palindrome (97633679).
The spelling of 80412271 in words is "eighty million, four hundred twelve thousand, two hundred seventy-one".
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