Base | Representation |
---|---|
bin | 1001100101110… |
… | …00000000000001 |
3 | 12121101001101210 |
4 | 10302320000001 |
5 | 131043223231 |
6 | 11552120333 |
7 | 1664526546 |
oct | 462700001 |
9 | 177331353 |
10 | 80445441 |
11 | 4145593a |
12 | 22b360a9 |
13 | 1388806b |
14 | a980bcd |
15 | 70e0a46 |
hex | 4cb8001 |
80445441 has 8 divisors (see below), whose sum is σ = 108044064. Its totient is φ = 53238560.
The previous prime is 80445439. The next prime is 80445451. The reversal of 80445441 is 14454408.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80445441 - 21 = 80445439 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80445399 and 80445408.
It is not an unprimeable number, because it can be changed into a prime (80445451) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97455 + ... + 98276.
It is an arithmetic number, because the mean of its divisors is an integer number (13505508).
It is a Proth number, since it is equal to 2455 ⋅ 215 + 1 and 2455 < 215.
Almost surely, 280445441 is an apocalyptic number.
It is an amenable number.
80445441 is a deficient number, since it is larger than the sum of its proper divisors (27598623).
80445441 is a wasteful number, since it uses less digits than its factorization.
80445441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 195871.
The product of its (nonzero) digits is 10240, while the sum is 30.
The square root of 80445441 is about 8969.1382529204. The cubic root of 80445441 is about 431.6851862347.
Adding to 80445441 its reverse (14454408), we get a palindrome (94899849).
The spelling of 80445441 in words is "eighty million, four hundred forty-five thousand, four hundred forty-one".
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