2989830987

Names of 2989830987

• Cardinal: 2989830987 can be written as Two billion, nine hundred eighty-nine million, eight hundred thirty thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 2.989830987 × 10⁹

Factors of 2989830987

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 186

Divisors of 2989830987

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 11 13 17 27 33 39 41 51 99 101 117 121 123 143 153 187 221 297 303 351 363 369 429 451 459 533 561 663 697 909 1089 1107 1111 1287 1313 1353 1573 1599 1683 1717 1989 2057 2091 2431 2727 3267 3333 3861 3939 4059 4141 4719 4797 4961 5049 5151 5863 5967 6171 6273 7293 7667 9061 9999 11817 12177 12221 12423 14157 14391 14443 14883 15453 17589 18513 18819 18887 21879 22321 23001 26741 27183 29997 35451 36663 37269 42471 43329 44649 45551 46359 52767 53833 55539 56661 64493 65637 66963 69003 70397 80223 81549 84337 99671 109989 111807 129987 133947 136653 158301 158873 161499 169983 193479 200889 207009 207757 211191 240669 244647 245531 253011 299013 329967 389961 409959 476619 484497 501061 509949 580437 592163 602667 623271 633573 722007 736593 759033 774367 897039 915161 1096381 1229877 1429857 1453491 1503183 1741311 1776489 1869813 1900719 2209779 2277099 2323101 2691117 2700841 2745483 3289143 4289571 4509549 5329467 5609439 6513793 6629337 6969303 8102523 8236449 8518037 9867429 10066771 13528647 15988401 19541379 20907909 24307569 24709347 25554111 29602287 30200313 58624137 72922707 76662333 90600939 110734481 175872411 229986999 271802817 332203443 996610329 2989830987
• Sum of all divisors σ(n): 5743301760
• Sum of proper divisors (its aliquot sum) s(n): 2753470773
• 2989830987 is a deficient number, because the sum of its proper divisors (2753470773) is less than itself. Its deficiency is 236360214

Bases of 2989830987

• Binary: 10110010001101010011001101001011₂
• Hexadecimal: 0xB235334B
• Base-36: 1DG2GCR

Squares and roots of 2989830987

• 2989830987 squared (2989830987²) is 8939089330825394169
• 2989830987 cubed (2989830987³) is 26726366276862857772965314803
• The square root of 2989830987 is 54679.3469876881
• The cube root of 2989830987 is 1440.6181417335

Scales and comparisons

• 2,989,830,987 seconds is equal to 95 years, 3 weeks, 3 days, 12 hours, 36 minutes, 27 seconds.
• To count from 1 to 2,989,830,987 would take you about one hundred ninety 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 2989830987 cubic inches would be around 120.1 feet tall.

Recreational maths with 2989830987

• 2989830987 backwards is 7890389892
• The number of decimal digits it has is: 10
• The sum of 2989830987's digits is 63
• More coming soon!