Base | Representation |
---|---|
bin | 1001100100111… |
… | …01100001011011 |
3 | 12121011112121222 |
4 | 10302131201123 |
5 | 131031240422 |
6 | 11545522255 |
7 | 1663565423 |
oct | 462354133 |
9 | 177145558 |
10 | 80336987 |
11 | 41391405 |
12 | 22aa338b |
13 | 1384a8a3 |
14 | a953483 |
15 | 70bd842 |
hex | 4c9d85b |
80336987 has 2 divisors, whose sum is σ = 80336988. Its totient is φ = 80336986.
The previous prime is 80336969. The next prime is 80337001. The reversal of 80336987 is 78963308.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 80336987 - 218 = 80074843 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (80336957) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40168493 + 40168494.
It is an arithmetic number, because the mean of its divisors is an integer number (40168494).
Almost surely, 280336987 is an apocalyptic number.
80336987 is a deficient number, since it is larger than the sum of its proper divisors (1).
80336987 is an equidigital number, since it uses as much as digits as its factorization.
80336987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 217728, while the sum is 44.
The square root of 80336987 is about 8963.0902595031. The cubic root of 80336987 is about 431.4911042172.
The spelling of 80336987 in words is "eighty million, three hundred thirty-six thousand, nine hundred eighty-seven".
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