Base | Representation |
---|---|
bin | 1001100101101… |
… | …00011000110010 |
3 | 12121100022002200 |
4 | 10302310120302 |
5 | 131042240032 |
6 | 11551524030 |
7 | 1664435445 |
oct | 462643062 |
9 | 177308080 |
10 | 80430642 |
11 | 41445806 |
12 | 22b29616 |
13 | 138813c6 |
14 | a97965c |
15 | 70db47c |
hex | 4cb4632 |
80430642 has 12 divisors (see below), whose sum is σ = 174266430. Its totient is φ = 26810208.
The previous prime is 80430593. The next prime is 80430661. The reversal of 80430642 is 24603408.
It can be written as a sum of positive squares in only one way, i.e., 42497361 + 37933281 = 6519^2 + 6159^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2234167 + ... + 2234202.
Almost surely, 280430642 is an apocalyptic number.
80430642 is an abundant number, since it is smaller than the sum of its proper divisors (93835788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80430642 is a wasteful number, since it uses less digits than its factorization.
80430642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4468377 (or 4468374 counting only the distinct ones).
The product of its (nonzero) digits is 4608, while the sum is 27.
The square root of 80430642 is about 8968.3132193295. The cubic root of 80430642 is about 431.6587132166.
The spelling of 80430642 in words is "eighty million, four hundred thirty thousand, six hundred forty-two".
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