79 (number)

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78 79 80
Cardinal seventy-nine
Ordinal 79th
(seventy-ninth)
Factorization prime
Prime 22nd
Divisors 1, 79
Roman numeral LXXIX
Binary 10011112
Ternary 22213
Quaternary 10334
Quinary 3045
Senary 2116
Octal 1178
Duodecimal 6712
Hexadecimal 4F16
Vigesimal 3J20
Base 36 2736

Seventy-nine is the natural number following 78 and preceding 80.

In mathematics

79 is:

In science

In astronomy

In other fields

References

  1. "Sloane's A016038 : Strictly non-palindromic numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  2. H. Cohen, A Course in Computational Algebraic Number Theory, GTM 138, Springer Verlag (1993), Appendix B2, p.507. The table lists fields by discriminant, which is 4p for Q[p] when p is congruent to 3 modulo 4, as is the case for 79, so the entry appears at discriminant 316.
  3. "Sloane's A006567 : Emirps". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  4. "Sloane's A046066 : Fortunate primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  5. "Sloane's A035497 : Happy primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  6. "Sloane's A007459 : Higgs' primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  7. "Primes of the form (2^n + 1)^2 - 2 = 4^n + 2^(n+1) - 1". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  8. "Sloane's A031157 : Numbers that are both lucky and prime". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  9. "Sloane's A063980 : Pillai primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29. 
  10. "Sloane's A007703 : Regular primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-29.