Base | Representation |
---|---|
bin | 1001101000011… |
… | …10110100010111 |
3 | 12122001010012101 |
4 | 10310032310113 |
5 | 131141113142 |
6 | 12003502531 |
7 | 2000540365 |
oct | 464166427 |
9 | 178033171 |
10 | 80801047 |
11 | 41679028 |
12 | 23087a47 |
13 | 13980b92 |
14 | aa34635 |
15 | 71610b7 |
hex | 4d0ed17 |
80801047 has 16 divisors (see below), whose sum is σ = 87768000. Its totient is φ = 74296992.
The previous prime is 80801041. The next prime is 80801059. The reversal of 80801047 is 74010808.
It is not a de Polignac number, because 80801047 - 211 = 80798999 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80801041) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352729 + ... + 352957.
It is an arithmetic number, because the mean of its divisors is an integer number (5485500).
Almost surely, 280801047 is an apocalyptic number.
80801047 is a deficient number, since it is larger than the sum of its proper divisors (6966953).
80801047 is an equidigital number, since it uses as much as digits as its factorization.
80801047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 327 (or 281 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 80801047 is about 8988.9402601197. The cubic root of 80801047 is about 432.3203338971.
The spelling of 80801047 in words is "eighty million, eight hundred one thousand, forty-seven".
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