Base | Representation |
---|---|
bin | 1001100010010… |
… | …11011010000001 |
3 | 12120112110020201 |
4 | 10301023122001 |
5 | 130440010031 |
6 | 11534405201 |
7 | 1660665010 |
oct | 461133201 |
9 | 176473221 |
10 | 80000641 |
11 | 41181736 |
12 | 22960801 |
13 | 13760776 |
14 | a8a6a77 |
15 | 7053d61 |
hex | 4c4b681 |
80000641 has 8 divisors (see below), whose sum is σ = 91615104. Its totient is φ = 68432640.
The previous prime is 80000639. The next prime is 80000681. The reversal of 80000641 is 14600008.
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 80000641 - 21 = 80000639 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80000681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7840 + ... + 14881.
It is an arithmetic number, because the mean of its divisors is an integer number (11451888).
Almost surely, 280000641 is an apocalyptic number.
It is an amenable number.
80000641 is a deficient number, since it is larger than the sum of its proper divisors (11614463).
80000641 is a wasteful number, since it uses less digits than its factorization.
80000641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23231.
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 80000641 is about 8944.3077429167. The cubic root of 80000641 is about 430.8880888305. Note that the first 3 decimals are identical.
Adding to 80000641 its reverse (14600008), we get a palindrome (94600649).
The spelling of 80000641 in words is "eighty million, six hundred forty-one", and thus it is an aban number.
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