231 (număr)

Pentru anul 231 al erei noastre, vedeți 231.
← 230 231 232 →
Cardinaldouă sute treizeci și unu
Ordinal231-lea
două sute treizeci și unulea
Factorizare3 · 7 · 11
Divizori1, 3, 7, 11, 21, 33, 77, 231
Cifre romaneCCXXXI
Binar111001112
Ternar221203
Cuaternar32134
Cvinariu14115
Senar10236
Octal3478
Duodecimal17312
HexazecimalE716
VigesimalBB20
Baza 366F36
Modifică text Consultați documentația formatului

231 (două sute treizeci și unu) este numărul natural care urmează după 230 și precede pe 232 într-un șir crescător de numere naturale.

În matematică

231:

În știință

În astronomie

În alte domenii

231 se poate referi la:

Note

  1. ^ Coman, Enciclopedia…, p. 22
  2. ^ Coman, Enciclopedia…, p. 27
  3. ^ Șirul A005100 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  4. ^ Coman, Enciclopedia…, p. 77
  5. ^ Șirul A048098 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  6. ^ Șirul A007304 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  7. ^ Coman, Enciclopedia…, p. 86
  8. ^ Șirul A000217 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  9. ^ Șirul A002817 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  10. ^ Coman, Enciclopedia…, p. 64
  11. ^ Șirul A000384 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  12. ^ Coman, Enciclopedia…, p. 64
  13. ^ Șirul A303305 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  14. ^ Coman, Enciclopedia…, p. 19
  15. ^ Șirul A069174 la Enciclopedia electronică a șirurilor de numere întregi (OEIS))
  16. ^ Șirul A005900 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  17. ^ Șirul A001845 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  18. ^ Șirul A053012 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)
  19. ^ Șirul A028442 la Enciclopedia electronică a șirurilor de numere întregi (OEIS)

Bibliografie

  • Marius Coman, Enciclopedia matematică a claselor de numere întregi, Columbus, Ohio: Education Publishing, 2013, ISBN: 978-1-59973-237-4

Legături externe

Materiale media legate de 231 la Wikimedia Commons

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