Base | Representation |
---|---|
bin | 1001100101101… |
… | …00011001001001 |
3 | 12121100022010112 |
4 | 10302310121021 |
5 | 131042240130 |
6 | 11551524105 |
7 | 1664435510 |
oct | 462643111 |
9 | 177308115 |
10 | 80430665 |
11 | 41445827 |
12 | 22b29635 |
13 | 13881413 |
14 | a979677 |
15 | 70db495 |
hex | 4cb4649 |
80430665 has 8 divisors (see below), whose sum is σ = 110304960. Its totient is φ = 55152432.
The previous prime is 80430661. The next prime is 80430761. The reversal of 80430665 is 56603408.
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 80430665 - 22 = 80430661 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80430661) 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, 1148975 + ... + 1149044.
It is an arithmetic number, because the mean of its divisors is an integer number (13788120).
Almost surely, 280430665 is an apocalyptic number.
It is an amenable number.
80430665 is a deficient number, since it is larger than the sum of its proper divisors (29874295).
80430665 is a wasteful number, since it uses less digits than its factorization.
80430665 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2298031.
The product of its (nonzero) digits is 17280, while the sum is 32.
The square root of 80430665 is about 8968.3145016218. The cubic root of 80430665 is about 431.6587543624.
The spelling of 80430665 in words is "eighty million, four hundred thirty thousand, six hundred sixty-five".
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