Base | Representation |
---|---|
bin | 1001101001110… |
… | …00010001011111 |
3 | 12122100202010021 |
4 | 10310320101133 |
5 | 131212031342 |
6 | 12011253011 |
7 | 2002145416 |
oct | 464702137 |
9 | 178322107 |
10 | 80970847 |
11 | 41784661 |
12 | 2314a167 |
13 | 13a10259 |
14 | aa7a47d |
15 | 7196567 |
hex | 4d3845f |
80970847 has 8 divisors (see below), whose sum is σ = 86619456. Its totient is φ = 75420672.
The previous prime is 80970839. The next prime is 80970863. The reversal of 80970847 is 74807908.
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 80970847 - 23 = 80970839 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80970887) 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, 22903 + ... + 26200.
It is an arithmetic number, because the mean of its divisors is an integer number (10827432).
Almost surely, 280970847 is an apocalyptic number.
80970847 is a deficient number, since it is larger than the sum of its proper divisors (5648609).
80970847 is a wasteful number, since it uses less digits than its factorization.
80970847 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49217.
The product of its (nonzero) digits is 112896, while the sum is 43.
The square root of 80970847 is about 8998.3802431326. The cubic root of 80970847 is about 432.6229563428.
The spelling of 80970847 in words is "eighty million, nine hundred seventy thousand, eight hundred forty-seven".
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