225 (tal)

225
Aritmetiska egenskaper
Primfaktorisering32 · 52
Delare1, 3, 5, 9, 15, 25, 45, 75, 225
Delarsumma403
Numeraler
RomersktCCXXV
Binärt11100001
Ternärt22100
Kvarternärt3201
Kvinärt1400
Senärt1013
Oktalt341
Duodecimalt169
HexadecimaltE1
VigesimaltB5
Basen 3669
Räkneord
GrundtalTvåhundratjugofem
OrdningstalTvåhundratjugofemte

225 är det naturliga talet som följer 224 och som följs av 226[1].

Inom vetenskapen

Inom matematiken

  • 225 är ett ojämnt tal.
  • 225 är summan av kuberna av de fem första positiva heltalen:
225 = 13 + 23 + 33 + 43 + 53
  • 225 är summan av tre kuber:
225 = 13 + 23 + 63

Se även

Externa länkar

Källor

  1. ^ ”225 på VirtueScience” (på engelska). Arkiverad från originalet den 15 april 2021. https://web.archive.org/web/20210415113955/https://www.virtuescience.com/225.html. Läst 20 maj 2017. 

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