642020684171555

Names of 642020684171555

• Cardinal: 642020684171555 can be written as Six hundred forty-two trillion, twenty billion, six hundred eighty-four million, one hundred seventy-one thousand, five hundred fifty-five.

Scientific notation

• Scientific notation: 6.42020684171555 × 10¹⁴

Factors of 642020684171555

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 139

Divisors of 642020684171555

• Number of divisors d(n): 200
• Complete list of divisors:
  1 5 13 37 41 43 65 169 185 205 215 481 533 559 845 1517 1591 1681 1763 2197 2405 2665 2795 6253 6929 7267 7585 7955 8405 8815 10985 19721 20683 21853 22919 28561 31265 34645 36335 62197 65231 68921 72283 81289 90077 94471 98605 103415 109265 114595 142805 256373 268879 284089 297947 310985 326155 344605 361415 406445 450385 472355 808561 848003 895973 939679 1056757 1171001 1228123 1281865 1344395 1420445 1489735 2550077 2674471 2825761 2963603 3332849 3495427 3693157 3873311 4042805 4240015 4479865 4698395 5283785 5855005 6140615 10511293 11024039 11647649 12215827 12750385 13372355 14128805 14818015 16664245 17477135 18465785 19366555 33151001 34768123 36734893 38526839 43327037 45440551 48011041 50353043 52556465 55120195 58238245 61079135 104553157 109653311 121507723 136646809 143312507 151419437 158805751 165755005 173840615 183674465 192634195 216635185 227202755 240055205 251765215 430963013 451985599 477553609 500848907 522765785 548266555 607538615 683234045 716562535 757097185 794028755 1359191041 1425493043 1579600399 1776408517 1863062591 1968452681 2064474763 2154815065 2259927995 2387768045 2504244535 4495785751 5602519169 5875812787 6208196917 6511035791 6795955205 7127465215 7898001995 8882042585 9315312955 9842263405 10322373815 17669483533 18531409559 20534805187 22478928755 28012595845 29379063935 31040984585 32555178955 58445214763 72832749197 76385566231 80706559921 84643465283 88347417665 92657047795 102674025935 229703285929 240908324267 266952467431 292226073815 364163745985 381927831155 403532799605 423217326415 759787791919 1148516429645 1204541621335 1334762337155 2986142717077 3131808215471 3470382076603 3798938959595 9877241294947 14930713585385 15659041077355 17351910383015 49386206474735 128404136834311 642020684171555
• Sum of all divisors σ(n): 899044436397360
• Sum of proper divisors (its aliquot sum) s(n): 257023752225805
• 642020684171555 is a deficient number, because the sum of its proper divisors (257023752225805) is less than itself. Its deficiency is 384996931945750

Bases of 642020684171555

• Binary: 10010001111110101000010110110100011000100100100011₂
• Hexadecimal: 0x247EA16D18923
• Base-36: 6BKS8AVFAB

Squares and roots of 642020684171555

• 642020684171555 squared (642020684171555²) is 412190558904111572916671118025
• 642020684171555 cubed (642020684171555³) is 264634864636673353789071927089174742752778875
• The square root of 642020684171555 is 25338127.0849199703
• The cube root of 642020684171555 is 86267.9888173573

Scales and comparisons

• 642,020,684,171,555 seconds is equal to 20,414,271 years, 44 weeks, 3 days, 16 hours, 32 minutes, 35 seconds.
• To count from 1 to 642,020,684,171,555 would take you about fifty-one million, thirty-five thousand, six hundred seventy-nine 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 642020684171555 cubic inches would be around 7189 feet tall.

Recreational maths with 642020684171555

• 642020684171555 backwards is 555171486020246
• The number of decimal digits it has is: 15
• The sum of 642020684171555's digits is 56
• More coming soon!