Base | Representation |
---|---|
bin | 1001100110011… |
… | …00110100110101 |
3 | 12121112101102001 |
4 | 10303030310311 |
5 | 131103440431 |
6 | 11554015301 |
7 | 1665333334 |
oct | 463146465 |
9 | 177471361 |
10 | 80530741 |
11 | 41503a35 |
12 | 22b77531 |
13 | 138b7b35 |
14 | a9a3d1b |
15 | 710ae61 |
hex | 4cccd35 |
80530741 has 2 divisors, whose sum is σ = 80530742. Its totient is φ = 80530740.
The previous prime is 80530739. The next prime is 80530781. The reversal of 80530741 is 14703508.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 40271716 + 40259025 = 6346^2 + 6345^2 .
It is a cyclic number.
It is not a de Polignac number, because 80530741 - 21 = 80530739 is a prime.
Together with 80530739, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80530711) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40265370 + 40265371.
It is an arithmetic number, because the mean of its divisors is an integer number (40265371).
Almost surely, 280530741 is an apocalyptic number.
80530741 is the 6346-th centered square number.
It is an amenable number.
80530741 is a deficient number, since it is larger than the sum of its proper divisors (1).
80530741 is an equidigital number, since it uses as much as digits as its factorization.
80530741 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3360, while the sum is 28.
The square root of 80530741 is about 8973.8921878971. The cubic root of 80530741 is about 431.8377108885.
The spelling of 80530741 in words is "eighty million, five hundred thirty thousand, seven hundred forty-one".
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