241 (number)

Last updated
240 241 242
Cardinal two hundred forty-one
Ordinal 241st
(two hundred forty-first)
Factorization prime
Prime twin prime
Greek numeral ΣΜΑ´
Roman numeral CCXLI, ccxli
Binary 111100012
Ternary 222213
Senary 10416
Octal 3618
Duodecimal 18112
Hexadecimal F116

241 (two hundred [and] forty-one) is the natural number between 240 and 242. It is also a prime number.

In mathematics

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<span class="mw-page-title-main">120 (number)</span> Natural number

120 is the natural number following 119 and preceding 121.

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.

500 is the natural number following 499 and preceding 501.

700 is the natural number following 699 and preceding 701.

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.

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References

  1. "Sloane's A007703 : Regular primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
  2. "Sloane's A031157 : Numbers that are both lucky and prime". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.