642116835945

Names of 642116835945

• Cardinal: 642116835945 can be written as Six hundred forty-two billion, one hundred sixteen million, eight hundred thirty-five thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 6.42116835945 × 10¹¹

Factors of 642116835945

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 795

Divisors of 642116835945

• Number of divisors d(n): 264
• Complete list of divisors:
  1 3 5 9 13 15 17 27 39 45 51 65 81 85 117 135 153 169 195 221 243 255 351 405 459 507 585 663 729 757 765 845 1053 1105 1215 1377 1521 1755 1989 2187 2271 2295 2535 2873 3159 3315 3645 3785 4131 4563 5265 5967 6561 6813 6885 7605 8619 9477 9841 9945 10935 11355 12393 12869 13689 14365 15795 17901 19683 20439 20655 22815 25857 28431 29523 29835 32805 34065 37179 38607 41067 43095 47385 49205 53703 59049 61317 61965 64345 68445 77571 85293 88569 89505 98415 102195 111537 115821 123201 127933 129285 142155 147615 161109 167297 183951 185895 193035 205335 232713 255879 265707 268515 295245 306585 334611 347463 369603 383799 387855 426465 442845 483327 501891 551853 557685 579105 616005 639665 698139 767637 797121 805545 836485 919755 1003833 1042389 1108809 1151397 1163565 1279395 1328535 1449981 1505673 1655559 1673055 1737315 1848015 1918995 2094417 2174861 2391363 2416635 2509455 2759265 3127167 3326427 3454191 3490695 3838185 3985605 4349943 4517019 4966677 5019165 5211945 5544045 5756985 6283251 6524583 7174089 7249905 7528365 8277795 9381501 9979281 10362573 10472085 10874305 11956815 13049829 13551057 14900031 15635835 16632135 17270955 18849753 19573749 21522267 21749715 22585095 24833385 28144503 31087719 31416255 32622915 35870445 40653171 44700093 46907505 49896405 51812865 56549259 58721247 64566801 65249145 67755285 74500155 84433509 93263157 94248765 97868745 107611335 121959513 140722515 155438595 169647777 176163741 193700403 203265855 223500465 253300527 279789471 282746295 293606235 322834005 365878539 422167545 466315785 528491223 581101209 609797565 759901581 839368413 848238885 880818705 968502015 1097635617 1266502635 1398947355 1585473669 1829392695 2518105239 2642456115 2905506045 3292906851 3799507905 4196842065 4756421007 5488178085 7554315717 7927368345 9878720553 12590526195 14269263021 16464534255 23782105035 37771578585 42807789063 49393602765 71346315105 128423367189 214038945315 642116835945
• Sum of all divisors σ(n): 1326922033176
• Sum of proper divisors (its aliquot sum) s(n): 684805197231
• 642116835945 is an abundant number, because the sum of its proper divisors (684805197231) is greater than itself. Its abundance is 42688361286

Bases of 642116835945

• Binary: 1001010110000001001001010101101001101001₂
• Hexadecimal: 0x9581255A69
• Base-36: 86ZFS9K9

Squares and roots of 642116835945

• 642116835945 squared (642116835945²) is 412314031004018044043025
• 642116835945 cubed (642116835945³) is 264753781004028698022594868446533625
• The square root of 642116835945 is 801321.9302783371
• The cube root of 642116835945 is 8627.2295223815

Scales and comparisons

• 642,116,835,945 seconds is equal to 20,417 years, 17 weeks, 19 hours, 45 minutes, 45 seconds.
• To count from 1 to 642,116,835,945 would take you about forty thousand, eight 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 642116835945 cubic inches would be around 718.9 feet tall.

Recreational maths with 642116835945

• 642116835945 backwards is 549538611246
• The number of decimal digits it has is: 12
• The sum of 642116835945's digits is 54
• More coming soon!