276 (number)
Appearance
276 (two hundred [and] seventy-six) is the natural number following 275 and preceding 277.
| ||||
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Cardinal | two hundred seventy-six | |||
Ordinal | 276th (two hundred seventy-sixth) | |||
Factorization | 22 × 3 × 23 | |||
Greek numeral | ΣΟϚ´ | |||
Roman numeral | CCLXXVI | |||
Binary | 1000101002 | |||
Ternary | 1010203 | |||
Senary | 11406 | |||
Octal | 4248 | |||
Duodecimal | 1B012 | |||
Hexadecimal | 11416 |
Mathematical properties
276 is:
- the sum of 3 consecutive fifth powers (276 = 15 + 25 + 35).[1]
- a triangular number.
- a hexagonal number.
- a centered pentagonal number.[2]
- a refactorable number.[3]
- an untouchable number.[4]
- the lowest number whose aliquot sequence has not yet been fully determined.[5]
- the sum of twelve consecutive prime numbers (5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43).
- a Harshad number in bases 2, 3, 4, 5, 6, 7, 9, 11, 12, 13, 16 (and 130 other bases).
- palindromic in bases 8 (4248), and a repdigit in bases 22 (CC22), 45 (6645), 68 (4468), 91 (3391), 137 (22137) and 275.
Other occurrences
According to the Bible, 276 was the number of people saved from the shipwreck mentioned in Acts 27:37.
276 is the highest number of rounds in boxing history, in a bare-knuckle fight in 1825 that saw Jack Jones beat Patsy Tunney after 4hr 30min.[6]
276 is the area code for southwest Virginia.
See also
- The years 276 and 276 BC
- List of highways numbered 276
- The asteroid 276 Adelheid
- United Nations Security Council Resolution 276
References
- ^ What's Special About This Number?
- ^ "Sloane's A005891 : Centered pentagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
- ^ "Refactorable number". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. 2016-04-18. Retrieved 2016-04-18.
- ^ "Untouchable number". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. 2016-04-18. Retrieved 2016-04-18.
- ^ Aliquot Sequences
- ^ Today's Number: 276