2121498561

Names of 2121498561

• Cardinal: 2121498561 can be written as Two billion, one hundred twenty-one million, four hundred ninety-eight thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 2.121498561 × 10⁹

Factors of 2121498561

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 550

Divisors of 2121498561

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 13 17 19 21 39 49 51 57 91 119 133 147 221 247 273 323 343 357 399 491 637 663 741 833 931 969 1029 1473 1547 1729 1911 2261 2499 2793 3437 4199 4459 4641 5187 5831 6383 6517 6783 8347 9329 10311 10829 12103 12597 13377 15827 17493 19149 19551 24059 25041 27987 29393 32487 36309 44681 47481 58429 65303 72177 75803 84721 88179 108511 110789 121277 134043 158593 168413 175287 195909 205751 227409 254163 312767 325533 332367 363831 409003 457121 475779 505239 617253 759577 848939 938301 1110151 1227009 1371363 1440257 2061709 2189369 2278731 2546817 2863021 3199847 3330453 4320771 5317039 5942573 6185127 6568107 7771057 8589063 9599541 14431963 15951117 17827719 23313171 37219273 41598011 43295889 54397399 101023741 111657819 124794033 163192197 303071223 707166187 2121498561
• Sum of all divisors σ(n): 3967488000
• Sum of proper divisors (its aliquot sum) s(n): 1845989439
• 2121498561 is a deficient number, because the sum of its proper divisors (1845989439) is less than itself. Its deficiency is 275509122

Bases of 2121498561

• Binary: 1111110011100110111111111000001₂
• Hexadecimal: 0x7E737FC1
• Base-36: Z332RL

Squares and roots of 2121498561

• 2121498561 squared (2121498561²) is 4500756144325070721
• 2121498561 cubed (2121498561³) is 9548347683597545850824732481
• The square root of 2121498561 is 46059.7281906873
• The cube root of 2121498561 is 1284.9342749265

Scales and comparisons

• 2,121,498,561 seconds is equal to 67 years, 23 weeks, 5 days, 9 hours, 9 minutes, 21 seconds.
• To count from 1 to 2,121,498,561 would take you about one hundred thirty-four years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 2121498561 cubic inches would be around 107.1 feet tall.

Recreational maths with 2121498561

• 2121498561 backwards is 1658941212
• 2121498561 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2121498561's digits is 39
• More coming soon!