640168447743

Names of 640168447743

• Cardinal: 640168447743 can be written as Six hundred forty billion, one hundred sixty-eight million, four hundred forty-seven thousand, seven hundred forty-three.

Scientific notation

• Scientific notation: 6.40168447743 × 10¹¹

Factors of 640168447743

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 673

Divisors of 640168447743

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 9 11 19 27 33 37 57 73 97 99 111 171 209 219 291 297 333 407 433 513 627 657 703 803 873 999 1067 1221 1299 1387 1843 1881 1971 2109 2409 2619 2701 3201 3589 3663 3897 4161 4763 5529 5643 6327 7081 7227 7733 8103 8227 9603 10767 10989 11691 12483 14289 15257 16021 16587 18981 20273 21243 21681 23199 24309 24681 28809 29711 31609 32301 37449 39479 42001 42867 45771 48063 49761 51319 60819 63729 68191 69597 72927 74043 77891 89133 90497 94827 96903 118437 126003 128601 134539 137313 144189 153957 176231 182457 191187 204573 208791 222129 233673 261997 267399 271491 284481 304399 347699 355311 378009 403617 411939 432567 461871 462011 528693 547371 564509 600571 613719 701019 750101 785991 798019 802197 814473 853443 913197 1043097 1065933 1134027 1169533 1210851 1385613 1386033 1479929 1554037 1586079 1693527 1801713 1841157 2103057 2250303 2357973 2394057 2443419 2739591 2881967 3066073 3129291 3348389 3508599 3632553 4158099 4439787 4662111 4758237 4977943 5080581 5405139 6606281 6750909 7073919 7182171 8218773 8645901 8778209 9198219 9387873 10045167 10525797 12474297 12864863 13319361 13986333 14933829 15241743 16215417 17094407 19818843 20252727 21546513 22221127 25937703 26334627 27594657 29526703 30135501 31577391 33726803 38594589 39958083 41958999 44801487 51283221 54757373 58255387 59456529 66663381 77813109 79003881 82783971 88580109 90406503 101180409 113444701 115783767 134404461 153849663 164272119 174766161 178369587 199990143 237011643 244432397 265740327 303541227 324793733 340334103 347351301 461548989 492816357 524298483 599970429 640809257 733297191 797220981 910623681 974381199 1021002309 1247891711 1478449071 1572895449 1922427771 2155449319 2199891573 2923143597 3063006927 3743675133 5767283313 6466347957 6599674719 8769430791 11231025399 17301849939 19399043871 23709942509 33693076197 58197131613 71129827527 213389482581 640168447743
• Sum of all divisors σ(n): 1148159846400
• Sum of proper divisors (its aliquot sum) s(n): 507991398657
• 640168447743 is a deficient number, because the sum of its proper divisors (507991398657) is less than itself. Its deficiency is 132177049086

Bases of 640168447743

• Binary: 1001010100001101000000110100111011111111₂
• Hexadecimal: 0x950D034EFF
• Base-36: 8637RJLR

Squares and roots of 640168447743

• 640168447743 squared (640168447743²) is 409815641485682121794049
• 640168447743 cubed (640168447743³) is 262351043070690918268423018664881407
• The square root of 640168447743 is 800105.2729128837
• The cube root of 640168447743 is 8618.4947555993

Scales and comparisons

• 640,168,447,743 seconds is equal to 20,355 years, 19 weeks, 4 days, 49 minutes, 3 seconds.
• To count from 1 to 640,168,447,743 would take you about forty thousand, seven hundred ten 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 640168447743 cubic inches would be around 718.2 feet tall.

Recreational maths with 640168447743

• 640168447743 backwards is 347744861046
• The number of decimal digits it has is: 12
• The sum of 640168447743's digits is 54
• More coming soon!