640085138000

Names of 640085138000

• Cardinal: 640085138000 can be written as Six hundred forty billion, eighty-five million, one hundred thirty-eight thousand.

Scientific notation

• Scientific notation: 6.40085138 × 10¹¹

Factors of 640085138000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1597

Divisors of 640085138000

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 25 28 35 40 44 49 50 55 56 70 77 80 88 98 100 110 112 125 140 154 175 176 196 200 220 245 250 275 280 308 350 385 392 400 440 490 500 539 550 560 616 631 700 770 784 875 880 941 980 1000 1078 1100 1225 1232 1262 1375 1400 1540 1750 1882 1925 1960 2000 2156 2200 2450 2524 2695 2750 2800 3080 3155 3500 3764 3850 3920 4312 4400 4417 4705 4900 5048 5390 5500 6125 6160 6310 6587 6941 7000 7528 7700 8624 8834 9410 9625 9800 10096 10351 10780 11000 12250 12620 13174 13475 13882 14000 15056 15400 15775 17668 18820 19250 19600 20702 21560 22000 22085 23525 24500 25240 26348 26950 27764 30800 30919 31550 32935 34705 35336 37640 38500 41404 43120 44170 46109 47050 48587 49000 50480 51755 52696 53900 55528 61838 63100 65870 67375 69410 70672 72457 75280 77000 78875 82808 88340 92218 94100 97174 98000 103510 105392 107800 110425 111056 117625 123676 126200 131740 134750 138820 144914 154000 154595 157750 164675 165616 173525 176680 184436 188200 194348 207020 215600 220850 230545 235250 242935 247352 252400 258775 263480 269500 277640 289828 309190 315500 329350 340109 347050 353360 362285 368872 376400 388696 414040 441700 461090 470500 485870 494704 507199 517550 526960 539000 552125 555280 579656 593771 618380 631000 658700 680218 694100 724570 737744 772975 777392 823375 828080 867625 883400 922180 941000 971740 1014398 1035100 1078000 1104250 1152725 1159312 1187542 1214675 1236760 1262000 1293875 1317400 1360436 1388200 1449140 1545950 1646750 1700545 1735250 1766800 1811425 1844360 1882000 1943480 2028796 2070200 2208500 2305450 2375084 2429350 2473520 2535995 2587750 2634800 2720872 2776400 2898280 2968855 3091900 3293500 3401090 3470500 3622850 3688720 3864875 3886960 4057592 4140400 4156397 4417000 4610900 4750168 4858700 5071990 5175500 5441744 5763625 5796560 5937710 6073375 6183800 6531481 6587000 6802180 6941000 7245700 7729750 8115184 8312794 8502725 8834000 9057125 9221800 9500336 9717400 10143980 10351000 11527250 11875420 12146750 12367600 12679975 13062962 13174000 13604360 13882000 14491400 14844275 15459500 16625588 17005450 18114250 18443600 19434800 20287960 20702000 20781985 23054500 23750840 24293500 25359950 26125924 27208720 28982800 29094779 29688550 30919000 32657405 33251176 34010900 36228500 40575920 41563970 42513625 45720367 46109000 47501680 48587000 50719900 52251848 58189558 59377100 61838000 63399875 65314810 66502352 68021800 72457000 74221375 83127940 85027250 91440734 92218000 97174000 101439800 103909925 104503696 116379116 118754200 126799750 130629620 136043600 144914000 145473895 148442750 163287025 166255880 170054500 182881468 202879600 207819850 228601835 232758232 237508400 253599500 261259240 290947790 296885500 320042569 326574050 332511760 340109000 365762936 415639700 457203670 465516464 507199000 519549625 522518480 581895580 593771000 640085138 653148100 680218000 727369475 731525872 816435125 831279400 914407340 1014398000 1039099250 1143009175 1163791160 1187542000 1280170276 1306296200 1454738950 1600212845 1632870250 1662558800 1828814680 2078198500 2286018350 2327582320 2560340552 2612592400 2909477900 3200425690 3265740500 3636847375 3657629360 4156397000 4572036700 5120681104 5715045875 5818955800 6400851380 6531481000 7273694750 8001064225 8312794000 9144073400 11430091750 11637911600 12801702760 13062962000 14547389500 16002128450 18288146800 22860183500 25603405520 29094779000 32004256900 40005321125 45720367000 58189558000 64008513800 80010642250 91440734000 128017027600 160021284500 320042569000 640085138000
• Sum of all divisors σ(n): 1969293171456
• Sum of proper divisors (its aliquot sum) s(n): 1329208033456
• 640085138000 is an abundant number, because the sum of its proper divisors (1329208033456) is greater than itself. Its abundance is 689122895456

Bases of 640085138000

• Binary: 1001010100001000000011000001101001010000₂
• Hexadecimal: 0x95080C1A50
• Base-36: 861U5XE8

Squares and roots of 640085138000

• 640085138000 squared (640085138000²) is 409708983888479044000000
• 640085138000 cubed (640085138000³) is 262248631492096885488848072000000000
• The square root of 640085138000 is 800053.2094804695
• The cube root of 640085138000 is 8618.1208770603

Scales and comparisons

• 640,085,138,000 seconds is equal to 20,352 years, 37 weeks, 5 days, 19 hours, 13 minutes, 20 seconds.
• To count from 1 to 640,085,138,000 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 640085138000 cubic inches would be around 718.2 feet tall.

Recreational maths with 640085138000

• 640085138000 backwards is 000831580046
• 640085138000 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640085138000's digits is 35
• More coming soon!