20155844709

Names of 20155844709

• Cardinal: 20155844709 can be written as Twenty billion, one hundred fifty-five million, eight hundred forty-four thousand, seven hundred nine.

Scientific notation

• Scientific notation: 2.0155844709 × 10¹⁰

Factors of 20155844709

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 65

Divisors of 20155844709

• Number of divisors d(n): 264
• Complete list of divisors:
  1 3 7 9 11 13 21 27 31 33 39 63 77 81 91 93 99 117 121 143 189 217 231 243 273 279 297 341 351 363 403 429 567 651 693 729 819 837 847 891 1001 1023 1053 1089 1209 1287 1573 1701 1953 2079 2187 2387 2457 2511 2541 2673 2821 3003 3069 3159 3267 3627 3751 3861 4433 4719 5103 5859 6237 6561 7161 7371 7533 7623 8019 8463 9009 9207 9477 9801 10881 11011 11253 11583 13299 14157 15309 17577 18711 19683 21483 22113 22599 22869 24057 25389 26257 27027 27621 28431 29403 31031 32643 33033 33759 34749 39897 42471 45927 48763 52731 56133 59049 64449 66339 67797 68607 72171 76167 78771 81081 82863 85293 88209 93093 97929 99099 101277 104247 119691 127413 137781 146289 158193 168399 193347 199017 203391 205821 216513 228501 236313 243243 248589 255879 264627 279279 293787 297297 303831 312741 341341 359073 382239 413343 438867 474579 505197 580041 597051 610173 617463 649539 685503 708939 729729 745767 767637 793881 837837 881361 891891 911493 938223 1024023 1077219 1146717 1316601 1423737 1515591 1740123 1791153 1830519 1852389 2056509 2126817 2189187 2237301 2381643 2513511 2644083 2675673 2734479 2814669 3072069 3231657 3440151 3949803 4271211 4546773 5220369 5373459 5557167 6169527 6380451 6567561 6711903 7144929 7540533 7932249 8027019 8203437 8444007 9216207 9694971 10320453 11849409 12813633 15661107 16671501 18508581 19141353 19702683 20135709 22621599 23796747 24081057 24610311 27648621 29084913 30961359 35548227 46983321 50014503 55525743 57424059 59108049 67864797 72243171 73830933 82945863 87254739 92884077 106644681 140949963 166577229 172272177 203594391 216729513 221492799 248837589 261764217 319934043 516816531 610783173 650188539 746512767 959802129 1550449593 1832349519 2239538301 2879406387 6718614903 20155844709
• Sum of all divisors σ(n): 42220269056
• Sum of proper divisors (its aliquot sum) s(n): 22064424347
• 20155844709 is an abundant number, because the sum of its proper divisors (22064424347) is greater than itself. Its abundance is 1908579638

Bases of 20155844709

• Binary: 10010110001011000011100100001100101₂
• Hexadecimal: 0x4B161C865
• Base-36: 99C9PB9

Squares and roots of 20155844709

• 20155844709 squared (20155844709²) is 406258075933323294681
• 20155844709 cubed (20155844709³) is 8188474690289194565882481692829
• The square root of 20155844709 is 141971.2812825187
• The cube root of 20155844709 is 2721.4498429061

Scales and comparisons

• 20,155,844,709 seconds is equal to 640 years, 46 weeks, 3 days, 5 hours, 45 minutes, 9 seconds.
• To count from 1 to 20,155,844,709 would take you about one thousand, two hundred eighty-one 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 20155844709 cubic inches would be around 226.8 feet tall.

Recreational maths with 20155844709

• 20155844709 backwards is 90744855102
• The number of decimal digits it has is: 11
• The sum of 20155844709's digits is 45
• More coming soon!