72645894720

Names of 72645894720

• Cardinal: 72645894720 can be written as Seventy-two billion, six hundred forty-five million, eight hundred ninety-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 7.264589472 × 10¹⁰

Factors of 72645894720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 13967

Divisors of 72645894720

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 37 40 42 45 48 49 56 60 63 64 70 72 74 80 84 90 96 98 105 111 112 120 126 140 144 147 148 160 168 180 185 192 196 210 222 224 240 245 252 259 280 288 294 296 315 320 333 336 360 370 392 420 441 444 448 480 490 504 518 555 560 576 588 592 630 666 672 720 735 740 777 784 840 882 888 960 980 1008 1036 1110 1120 1176 1184 1260 1295 1332 1344 1440 1470 1480 1554 1568 1665 1680 1764 1776 1813 1960 2016 2072 2205 2220 2240 2331 2352 2368 2520 2590 2664 2880 2940 2960 3108 3136 3330 3360 3528 3552 3626 3885 3920 4032 4144 4410 4440 4662 4704 5040 5180 5328 5439 5880 5920 6216 6660 6720 7056 7104 7252 7770 7840 8288 8820 8880 9065 9324 9408 10080 10360 10656 10878 11655 11760 11840 12432 13320 13913 14112 14504 15540 15680 16317 16576 17640 17760 18130 18648 20160 20720 21312 21756 23310 23520 24864 26640 27195 27826 28224 29008 31080 32634 35280 35520 36260 37296 41440 41739 43512 46620 47040 49728 53280 54390 55652 58016 62160 65268 69565 70560 72520 74592 81585 82880 83478 87024 93240 97391 106560 108780 111304 116032 124320 125217 130536 139130 141120 145040 149184 163170 166956 174048 186480 194782 208695 217560 222608 248640 250434 261072 278260 290080 292173 326340 333912 348096 372960 389564 417390 435120 445216 486955 500868 514781 522144 556520 580160 584346 626085 652680 667824 681737 745920 779128 834780 870240 876519 890432 973910 1001736 1029562 1044288 1113040 1168692 1252170 1305360 1335648 1363474 1460865 1544343 1558256 1669560 1740480 1753038 1947820 2003472 2045211 2059124 2226080 2337384 2504340 2573905 2610720 2671296 2726948 2921730 3088686 3116512 3339120 3408685 3506076 3603467 3895640 4006944 4090422 4118248 4382595 4452160 4633029 4674768 5008680 5147810 5221440 5453896 5843460 6135633 6177372 6233024 6678240 6817370 7012152 7206934 7721715 7791280 8013888 8180844 8236496 8765190 9266058 9349536 10017360 10226055 10295620 10810401 10907792 11686920 12271266 12354744 13356480 13634740 14024304 14413868 15443430 15582560 16361688 16472992 17530380 18017335 18532116 18699072 20034720 20452110 20591240 21620802 21815584 23165145 23373840 24542532 24709488 25224269 27269480 28048608 28827736 30678165 30886860 31165120 32431203 32723376 32945984 35060760 36034670 37064232 40069440 40904220 41182480 43241604 43631168 46330290 46747680 49085064 49418976 50448538 54052005 54538960 56097216 57655472 61356330 61773720 64862406 65446752 70121520 72069340 74128464 75672807 81808440 82364960 86483208 92660580 93495360 98170128 98837952 100897076 108104010 109077920 115310944 122712660 123547440 126121345 129724812 130893504 140243040 144138680 148256928 151345614 162156015 163616880 164729920 172966416 185321160 196340256 201794152 216208020 218155840 227018421 230621888 245425320 247094880 252242690 259449624 280486080 288277360 296513856 302691228 324312030 327233760 345932832 370642320 378364035 392680512 403588304 432416040 454036842 490850640 494189760 504485380 518899248 576554720 605382456 648624060 654467520 691865664 741284640 756728070 807176608 864832080 908073684 981701280 1008970760 1037798496 1135092105 1153109440 1210764912 1297248120 1482569280 1513456140 1614353216 1729664160 1816147368 1963402560 2017941520 2075596992 2270184210 2421529824 2594496240 3026912280 3459328320 3632294736 4035883040 4540368420 4843059648 5188992480 6053824560 7264589472 8071766080 9080736840 10377984960 12107649120 14529178944 18161473680 24215298240 36322947360 72645894720
• Sum of all divisors σ(n): 298544293944
• Sum of proper divisors (its aliquot sum) s(n): 225898399224
• 72645894720 is an abundant number, because the sum of its proper divisors (225898399224) is greater than itself. Its abundance is 153252504504

Bases of 72645894720

• Binary: 1000011101010000010000110001001000000₂
• Hexadecimal: 0x10EA086240
• Base-36: XDFHN40

Squares and roots of 72645894720

• 72645894720 squared (72645894720²) is 5277426019669323878400
• 72645894720 cubed (72645894720³) is 383383335017486351683828482048000
• The square root of 72645894720 is 269529.0238916767
• The cube root of 72645894720 is 4172.5705869447

Scales and comparisons

• 72,645,894,720 seconds is equal to 2,309 years, 47 weeks, 3 days, 23 hours, 12 minutes.
• To count from 1 to 72,645,894,720 would take you about four thousand, six hundred nineteen 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 72645894720 cubic inches would be around 347.7 feet tall.

Recreational maths with 72645894720

• 72645894720 backwards is 02749854627
• The number of decimal digits it has is: 11
• The sum of 72645894720's digits is 54
• More coming soon!