Base | Representation |
---|---|
bin | 1001100100001… |
… | …11100101001011 |
3 | 12120222222100101 |
4 | 10302013211023 |
5 | 131020401430 |
6 | 11543550231 |
7 | 1663042414 |
oct | 462074513 |
9 | 176888311 |
10 | 80247115 |
11 | 4132a933 |
12 | 22a5b377 |
13 | 13818a00 |
14 | a92c80b |
15 | 70a1dca |
hex | 4c8794b |
80247115 has 24 divisors (see below), whose sum is σ = 108833760. Its totient is φ = 56669184.
The previous prime is 80247107. The next prime is 80247143. The reversal of 80247115 is 51174208.
It is not a de Polignac number, because 80247115 - 23 = 80247107 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17371 + ... + 21499.
It is an arithmetic number, because the mean of its divisors is an integer number (4534740).
Almost surely, 280247115 is an apocalyptic number.
80247115 is a deficient number, since it is larger than the sum of its proper divisors (28586645).
80247115 is a wasteful number, since it uses less digits than its factorization.
80247115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4183 (or 4170 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 28.
The square root of 80247115 is about 8958.0754071396. The cubic root of 80247115 is about 431.3301429154.
The spelling of 80247115 in words is "eighty million, two hundred forty-seven thousand, one hundred fifteen".
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