81146388480

Names of 81146388480

• Cardinal: 81146388480 can be written as Eighty-one billion, one hundred forty-six million, three hundred eighty-eight thousand, four hundred eighty.

Scientific notation

• Scientific notation: 8.114638848 × 10¹⁰

Factors of 81146388480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 212

Divisors of 81146388480

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 71 80 96 120 128 131 142 160 192 213 240 256 262 284 320 355 384 393 426 480 512 524 568 640 655 710 768 786 852 960 1024 1048 1065 1136 1280 1310 1420 1536 1572 1704 1920 1965 2048 2096 2130 2272 2560 2620 2840 3072 3144 3408 3840 3930 4096 4192 4260 4544 5041 5120 5240 5680 6144 6288 6816 7680 7860 8192 8384 8520 9088 9301 10082 10240 10480 11360 12288 12576 13632 15123 15360 15720 16768 17040 18176 18602 20164 20480 20960 22720 24576 25152 25205 27264 27903 30246 30720 31440 33536 34080 36352 37204 40328 40960 41920 45440 46505 50304 50410 54528 55806 60492 61440 62880 67072 68160 72704 74408 75615 80656 83840 90880 93010 100608 100820 109056 111612 120984 122880 125760 134144 136320 139515 145408 148816 151230 161312 167680 181760 186020 201216 201640 218112 223224 241968 251520 268288 272640 279030 290816 297632 302460 322624 335360 363520 372040 402432 403280 436224 446448 483936 503040 536576 545280 558060 581632 595264 604920 645248 660371 670720 727040 744080 804864 806560 872448 892896 967872 1006080 1073152 1090560 1116120 1190528 1209840 1290496 1320742 1341440 1454080 1488160 1609728 1613120 1744896 1785792 1935744 1981113 2012160 2181120 2232240 2381056 2419680 2580992 2641484 2682880 2908160 2976320 3219456 3226240 3301855 3571584 3871488 3962226 4024320 4362240 4464480 4762112 4839360 5161984 5282968 5365760 5952640 6452480 6603710 7143168 7742976 7924452 8048640 8724480 8928960 9524224 9678720 9905565 10323968 10565936 11905280 12904960 13207420 14286336 15485952 15848904 16097280 17857920 19048448 19357440 19811130 20647936 21131872 23810560 25809920 26414840 28572672 30971904 31697808 35715840 38096896 38714880 39622260 41295872 42263744 47621120 51619840 52829680 57145344 61943808 63395616 71431680 76193792 77429760 79244520 84527488 95242240 103239680 105659360 114290688 123887616 126791232 142863360 154859520 158489040 169054976 190484480 206479360 211318720 228581376 253582464 285726720 309719040 316978080 338109952 380968960 422637440 507164928 571453440 619438080 633956160 676219904 845274880 1014329856 1142906880 1267912320 1352439808 1690549760 2028659712 2535824640 2704879616 3381099520 4057319424 5071649280 5409759232 6762199040 8114638848 10143298560 13524398080 16229277696 20286597120 27048796160 40573194240 81146388480
• Sum of all divisors σ(n): 265371571872
• Sum of proper divisors (its aliquot sum) s(n): 184225183392
• 81146388480 is an abundant number, because the sum of its proper divisors (184225183392) is greater than itself. Its abundance is 103078794912

Bases of 81146388480

• Binary: 1001011100100101100111010000000000000₂
• Hexadecimal: 0x12E4B3A000
• Base-36: 11A0GQ2O

Squares and roots of 81146388480

• 81146388480 squared (81146388480²) is 6584736363347076710400
• 81146388480 cubed (81146388480³) is 534327574978544319814478856192000
• The square root of 81146388480 is 284862.0516671183
• The cube root of 81146388480 is 4329.3536697049

Scales and comparisons

• 81,146,388,480 seconds is equal to 2,580 years, 10 weeks, 4 days, 7 hours, 28 minutes.
• To count from 1 to 81,146,388,480 would take you about five thousand, one hundred sixty 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 81146388480 cubic inches would be around 360.8 feet tall.

Recreational maths with 81146388480

• 81146388480 backwards is 08488364118
• The number of decimal digits it has is: 11
• The sum of 81146388480's digits is 51
• More coming soon!