640079290872

Names of 640079290872

• Cardinal: 640079290872 can be written as Six hundred forty billion, seventy-nine million, two hundred ninety thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.40079290872 × 10¹¹

Factors of 640079290872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 225

Divisors of 640079290872

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 43 56 63 72 73 84 86 97 126 129 146 168 172 194 219 252 258 291 292 301 344 387 388 438 504 511 516 582 584 602 657 679 774 776 873 876 903 1022 1032 1164 1204 1314 1358 1533 1548 1746 1752 1806 1849 2037 2044 2328 2408 2628 2709 2716 3066 3096 3139 3492 3612 3698 4074 4088 4171 4599 5256 5418 5432 5547 6111 6132 6278 6984 7081 7224 7396 8148 8342 9198 9409 9417 10836 11094 12222 12264 12513 12556 12943 14162 14792 16296 16641 16684 18396 18818 18834 21243 21672 21973 22188 24444 25026 25112 25886 28227 28251 28324 29197 33282 33368 36792 37539 37636 37668 38829 42486 43946 44376 48888 49567 50052 51772 56454 56502 56648 58394 63729 65863 65919 66564 75078 75272 75336 77658 84681 84972 87591 87892 99134 100104 103544 112908 113004 116487 116788 127458 131726 131838 133128 134977 148701 150156 155316 169362 169944 175182 175784 179353 197589 197757 198268 225816 226008 232974 233576 254916 262773 263452 263676 269954 297402 300312 304483 310632 338724 350364 358706 395178 395514 396536 404587 404931 446103 465948 509832 525546 526904 527352 538059 539908 592767 594804 608966 677448 686857 700728 717412 790356 791028 809174 809862 892206 913449 931896 944839 1051092 1076118 1079816 1185534 1189608 1213761 1214793 1217932 1255471 1373714 1434824 1580712 1582056 1614177 1618348 1619724 1784412 1826898 1889678 2060571 2102184 2131381 2152236 2371068 2427522 2429586 2435864 2510942 2740347 2747428 2832109 2834517 3228354 3236696 3239448 3568824 3641283 3653796 3766413 3779356 4121142 4262762 4304472 4742136 4807999 4855044 4859172 5021884 5480694 5494856 5664218 5669034 6181713 6394143 6456708 7282566 7307592 7532826 7558712 8242284 8496327 8503551 8525524 9615998 9710088 9718344 10043768 10961388 11299239 11328436 11338068 12363426 12788286 12913416 13092769 14423997 14565132 15065652 16484568 16992654 17007102 17051048 17397241 19182429 19231996 21922776 22598478 22656872 22676136 24726852 25488981 25576572 26185538 28847994 29130264 29534851 30131304 33985308 34014204 34794482 38364858 38463992 39278307 43271991 45196956 49453704 50977962 51153144 52191723 52371076 57695988 59069702 67970616 68028408 69588964 76729716 78556614 86543982 88604553 90393912 91649383 101955924 104383446 104742152 115391976 117834921 118139404 121780687 139177928 153459432 156575169 157113228 173087964 177209106 183298766 203911848 206743957 208766892 235669842 236278808 243561374 265813659 274948149 313150338 314226456 346175928 354418212 365342061 366597532 413487914 417533784 471339684 487122748 531627318 549896298 620231871 626300676 708836424 730684122 733195064 824844447 826975828 942679368 974245496 1063254636 1096026183 1099792596 1240463742 1252601352 1269998593 1461368244 1649688894 1653951656 1860695613 2126509272 2192052366 2199585192 2480927484 2539997186 2922736488 3299377788 3721391226 3809995779 4384104732 4961854968 5079994372 6598755576 7442782452 7619991558 8768209464 8889990151 10159988744 11429987337 14885564904 15239983116 17779980302 22859974674 26669970453 30479966232 35559960604 45719949348 53339940906 71119921208 80009911359 91439898696 106679881812 160019822718 213359763624 320039645436 640079290872
• Sum of all divisors σ(n): 2077544935440
• Sum of proper divisors (its aliquot sum) s(n): 1437465644568
• 640079290872 is an abundant number, because the sum of its proper divisors (1437465644568) is greater than itself. Its abundance is 797386353696

Bases of 640079290872

• Binary: 1001010100000111101100101110000111111000₂
• Hexadecimal: 0x9507B2E1F8
• Base-36: 861QOLQ0

Squares and roots of 640079290872

• 640079290872 squared (640079290872²) is 409701498603202382520384
• 640079290872 cubed (640079290872³) is 262241444695133479511948278805134848
• The square root of 640079290872 is 800049.5552601727
• The cube root of 640079290872 is 8618.0946350255

Scales and comparisons

• 640,079,290,872 seconds is equal to 20,352 years, 28 weeks, 1 day, 3 hours, 1 minute, 12 seconds.
• To count from 1 to 640,079,290,872 would take you about forty thousand, seven hundred five 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 640079290872 cubic inches would be around 718.2 feet tall.

Recreational maths with 640079290872

• 640079290872 backwards is 278092970046
• The number of decimal digits it has is: 12
• The sum of 640079290872's digits is 54
• More coming soon!