Base | Representation |
---|---|
bin | 1001101001110… |
… | …01000100000111 |
3 | 12122100220120021 |
4 | 10310321010013 |
5 | 131212132322 |
6 | 12011320011 |
7 | 2002161025 |
oct | 464710407 |
9 | 178326507 |
10 | 80974087 |
11 | 41787037 |
12 | 23150007 |
13 | 13a1187c |
14 | aa7b715 |
15 | 71974c7 |
hex | 4d39107 |
80974087 has 2 divisors, whose sum is σ = 80974088. Its totient is φ = 80974086.
The previous prime is 80974063. The next prime is 80974097. The reversal of 80974087 is 78047908.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 80974087 - 211 = 80972039 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80974027) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40487043 + 40487044.
It is an arithmetic number, because the mean of its divisors is an integer number (40487044).
Almost surely, 280974087 is an apocalyptic number.
80974087 is a deficient number, since it is larger than the sum of its proper divisors (1).
80974087 is an equidigital number, since it uses as much as digits as its factorization.
80974087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 112896, while the sum is 43.
The square root of 80974087 is about 8998.5602737327. The cubic root of 80974087 is about 432.6287266488.
The spelling of 80974087 in words is "eighty million, nine hundred seventy-four thousand, eighty-seven".
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