81
0 sources
81
Summary
81 is a positive integer[1]. 81 ranks in the top 9% of positive_integer entities by monthly Wikipedia readership (237 views/month).[2]
Key Facts
- 81's instance of is recorded as positive integer[3].
- 81's instance of is recorded as odd number[4].
- 81's instance of is recorded as square number[5].
- 81's instance of is recorded as centered octagonal number[6].
- 81's instance of is recorded as heptagonal number[7].
- 81's instance of is recorded as composite number[8].
- 81's instance of is recorded as power of three[9].
- 81's instance of is recorded as harshad number[10].
- 81's Commons category is recorded as 81 (number)[11].
- 81's Freebase ID is recorded as /m/022sq6[12].
- 81's numeric value is recorded as {'amount': '+81'}[13].
- 81's BabelNet ID is recorded as 03113855n[14].
- 81's code is recorded as ௮௰௧[15].
- 81's code is recorded as ௮௧[16].
- 81's code is recorded as LXXXI[17].
- 81's code is recorded as 𒐕𒎙𒐕[18].
- 81's code is recorded as 1010001[19].
- 81's code is recorded as 10000[20].
- 81's code is recorded as 1101[21].
- 81's code is recorded as 311[22].
- 81's code is recorded as 213[23].
- 81's code is recorded as 144[24].
- 81's code is recorded as 100[25].
- 81's code is recorded as 121[26].
- 81's code is recorded as 81[27].
Why It Matters
81 ranks in the top 9% of positive_integer entities by monthly Wikipedia readership (237 views/month).[2] 81 has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[28] 81 is known by 34 alternative names across languages and contexts.[29]