640090372680

Names of 640090372680

• Cardinal: 640090372680 can be written as Six hundred forty billion, ninety million, three hundred seventy-two thousand, six hundred eighty.

Scientific notation

• Scientific notation: 6.4009037268 × 10¹¹

Factors of 640090372680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 6740

Divisors of 640090372680

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 81 88 90 99 108 110 120 121 132 135 162 165 180 198 216 220 242 243 264 270 297 324 330 360 363 396 405 440 484 486 495 540 594 605 648 660 726 729 792 810 891 968 972 990 1080 1089 1188 1210 1215 1320 1452 1458 1485 1620 1782 1815 1944 1980 2178 2187 2376 2420 2430 2673 2904 2916 2970 3240 3267 3564 3630 3645 3960 4356 4374 4455 4840 4860 5346 5445 5832 5940 6534 6561 6719 7128 7260 7290 8019 8712 8748 8910 9720 9801 10692 10890 10935 11880 13068 13122 13365 13438 14520 14580 16038 16335 17496 17820 19602 19683 20157 21384 21780 21870 24057 26136 26244 26730 26876 29160 29403 32076 32670 32805 33595 35640 39204 39366 40095 40314 43560 43740 48114 49005 52488 53460 53752 58806 60471 64152 65340 65610 67190 72171 73909 78408 78732 80190 80628 87480 88209 96228 98010 98415 100785 106920 117612 120285 120942 130680 131220 134380 144342 147015 147818 157464 160380 161256 176418 181413 192456 196020 196830 201570 216513 221727 235224 240570 241884 262440 264627 268760 288684 294030 295636 302355 320760 352836 360855 362826 369545 392040 393660 403140 433026 441045 443454 481140 483768 529254 544239 577368 588060 591272 604710 665181 705672 721710 725652 739090 787320 793881 806280 812999 866052 882090 886908 907065 962280 1058508 1082565 1088478 1108635 1176120 1209420 1323135 1330362 1443420 1451304 1478180 1587762 1625998 1632717 1732104 1764180 1773816 1814130 1995543 2117016 2165130 2176956 2217270 2381643 2418840 2438997 2646270 2660724 2721195 2886840 2956360 3175524 3251996 3265434 3325905 3528360 3628260 3969405 3991086 4064995 4330260 4353912 4434540 4763286 4877994 4898151 5292540 5321448 5442390 5986629 6351048 6503992 6530868 6651810 7256520 7316991 7938810 7982172 8129990 8163585 8660520 8869080 9526572 9755988 9796302 9977715 10585080 10884780 11908215 11973258 12194985 13061736 13303620 14633982 14694453 15877620 15964344 16259980 16327170 17959887 19053144 19511976 19592604 19955430 21769560 21950973 23816430 23946516 24389970 24490755 26607240 29267964 29388906 29933145 31755240 32519960 32654340 35919774 36584955 39185208 39910860 43901946 44083359 47632860 47893032 48779940 48981510 53879661 58535928 58777812 59866290 65308680 65852919 71839548 73169910 73472265 79821720 87803892 88166718 89799435 95265720 97559880 97963020 107759322 109754865 117555624 119732580 131705838 132250077 143679096 146339820 146944530 161638983 175607784 176333436 179598870 195926040 197558757 215518644 219509730 220416795 239465160 263411676 264500154 269398305 292679640 293889060 323277966 329264595 352666872 359197740 395117514 431037288 439019460 440833590 484916949 526823352 529000308 538796610 587778120 592676271 646555932 658529190 661250385 718395480 790235028 808194915 878038920 881667180 969833898 987793785 1058000616 1077593220 1185352542 1293111864 1317058380 1322500770 1454750847 1580470056 1616389830 1763334360 1778028813 1939667796 1975587570 2155186440 2370705084 2424584745 2634116760 2645001540 2909501694 2963381355 3232779660 3556057626 3879335592 3951175140 4741410168 4849169490 5290003080 5334086439 5819003388 5926762710 6465559320 7112115252 7273754235 7902350280 8890144065 9698338980 10668172878 11638006776 11853525420 14224230504 14547508470 16002259317 17780288130 19396677960 21336345756 23707050840 26670432195 29095016940 32004518634 35560576260 42672691512 53340864390 58190033880 64009037268 71121152520 80011296585 106681728780 128018074536 160022593170 213363457560 320045186340 640090372680
• Sum of all divisors σ(n): 2374863321600
• Sum of proper divisors (its aliquot sum) s(n): 1734772948920
• 640090372680 is an abundant number, because the sum of its proper divisors (1734772948920) is greater than itself. Its abundance is 1094682576240

Bases of 640090372680

• Binary: 1001010100001000010110111111101001001000₂
• Hexadecimal: 0x95085BFA48
• Base-36: 861XA4I0

Squares and roots of 640090372680

• 640090372680 squared (640090372680²) is 409715685197621290382400
• 640090372680 cubed (640090372680³) is 262255065630986971210372915712832000
• The square root of 640090372680 is 800056.4809311903
• The cube root of 640090372680 is 8618.1443702797

Scales and comparisons

• 640,090,372,680 seconds is equal to 20,352 years, 46 weeks, 3 days, 9 hours, 18 minutes.
• To count from 1 to 640,090,372,680 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 640090372680 cubic inches would be around 718.2 feet tall.

Recreational maths with 640090372680

• 640090372680 backwards is 086273090046
• 640090372680 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640090372680's digits is 45
• More coming soon!