227 (number)

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← 226 227 228 →
Cardinal two hundred twenty-seven
Ordinal 227th
(two hundred twenty-seventh)
Factorization prime
Prime yes
Greek numeral ΣΚΖ´
Roman numeral CCXXVII
Binary 111000112
Ternary 221023
Senary 10156
Octal 3438
Duodecimal 16B12
Hexadecimal E316

227 (two hundred [and] twenty-seven) is the natural number between 226 and 228. It is also a prime number.

In mathematics

227 is a twin prime, and the start of a prime triplet [1] 227 is a safe prime, a regular prime, [2] , a Pillai prime, [3] , a Stern prime, [4] and a Ramanujan prime. [5]

Related Research Articles

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1000 or one thousand is the natural number following 999 and preceding 1001. In most English-speaking countries, it can be written with or without a comma or sometimes a period separating the thousands digit: 1,000.

300 is the natural number following 299 and preceding 301.

400 is the natural number following 399 and preceding 401.

600 is the natural number following 599 and preceding 601.

800 is the natural number following 799 and preceding 801.

900 is the natural number following 899 and preceding 901. It is the square of 30 and the sum of Euler's totient function for the first 54 positive integers. In base 10, it is a Harshad number. It is also the first number to be the square of a sphenic number.

It is:

4000 is the natural number following 3999 and preceding 4001. It is a decagonal number.

229 is the natural number following 228 and preceding 230.

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233 is the natural number following 232 and preceding 234.

263 is the natural number between 262 and 264. It is also a prime number.

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References

    1. ↑ Sloane, N. J. A. (ed.). "SequenceA022004(Initial members of prime triples (p, p+2, p+6))". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
    2. ↑ Sloane, N. J. A. (ed.). "SequenceA007703(Regular primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
    3. ↑ Sloane, N. J. A. (ed.). "SequenceA063980(Pillai primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
    4. ↑ Sloane, N. J. A. (ed.). "SequenceA042978(Stern primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
    5. ↑ Sloane, N. J. A. (ed.). "SequenceA104272(Ramanujan primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
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