18081397134720

Names of 18081397134720

• Cardinal: 18081397134720 can be written as Eighteen trillion, eighty-one billion, three hundred ninety-seven million, one hundred thirty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.808139713472 × 10¹³

Factors of 18081397134720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 20517226

Divisors of 18081397134720

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 45 48 51 54 60 64 68 72 80 81 85 90 96 102 108 120 128 135 136 144 153 160 162 170 180 192 204 216 240 255 270 272 288 306 320 324 340 360 384 405 408 432 459 480 510 540 544 576 612 640 648 680 720 765 810 816 864 918 960 1020 1080 1088 1152 1224 1296 1360 1377 1440 1530 1620 1632 1728 1836 1920 2040 2160 2176 2295 2448 2592 2720 2754 2880 3060 3240 3264 3456 3672 4080 4320 4590 4896 5184 5440 5508 5760 6120 6480 6528 6885 7344 8160 8640 9180 9792 10368 10880 11016 12240 12960 13770 14688 16320 17280 18360 19584 22032 24480 25920 27540 29376 32640 36720 44064 48960 51840 55080 58752 73440 88128 97920 110160 146880 176256 220320 293760 440640 881280 20517199 41034398 61551597 82068796 102585995 123103194 164137592 184654791 205171990 246206388 307757985 328275184 348792383 369309582 410343980 492412776 553964373 615515970 656550368 697584766 738619164 820687960 923273955 984825552 1046377149 1107928746 1231031940 1313100736 1395169532 1477238328 1641375920 1661893119 1743961915 1846547910 1969651104 2092754298 2215857492 2462063880 2626201472 2769821865 2790339064 2954476656 3139131447 3282751840 3323786238 3487923830 3693095820 3939302208 4185508596 4431714984 4924127760 5231885745 5539643730 5580678128 5908953312 6278262894 6565503680 6647572476 6975847660 7386191640 7878604416 8309465595 8371017192 8863429968 9417394341 9848255520 10463771490 11079287460 11161356256 11817906624 12556525788 13131007360 13295144952 13951695320 14772383280 15695657235 16618931190 16742034384 17726859936 18834788682 19696511040 20927542980 22158574920 22322712512 23635813248 25113051576 26590289904 27903390640 28252183023 29544766560 31391314470 33237862380 33484068768 35453719872 37669577364 39393022080 41855085960 44317149840 44645425024 47086971705 50226103152 53180579808 55806781280 56504366046 59089533120 62782628940 66475724760 66968137536 70907439744 75339154728 83710171920 88634299680 94173943410 100452206304 106361159616 111613562560 113008732092 118179066240 125565257880 132951449520 133936275072 141260915115 150678309456 167420343840 177268599360 188347886820 200904412608 212722319232 223227125120 226017464184 251130515760 265902899040 282521830230 301356618912 334840687680 354537198720 376695773640 401808825216 452034928368 502261031520 531805798080 565043660460 602713237824 669681375360 753391547280 904069856736 1004522063040 1063611596160 1130087320920 1205426475648 1506783094560 1808139713472 2009044126080 2260174641840 3013566189120 3616279426944 4520349283680 6027132378240 9040698567360 18081397134720
• Sum of all divisors σ(n): 68370286248000
• Sum of proper divisors (its aliquot sum) s(n): 50288889113280
• 18081397134720 is an abundant number, because the sum of its proper divisors (50288889113280) is greater than itself. Its abundance is 32207491978560

Bases of 18081397134720

• Binary: 100000111000111100111010000001101010110000000₂
• Hexadecimal: 0x1071E740D580
• Base-36: 6EQH90800

Squares and roots of 18081397134720

• 18081397134720 squared (18081397134720²) is 326936922343460625829478400
• 18081397134720 cubed (18081397134720³) is 5911476330895224107602268765072130048000
• The square root of 18081397134720 is 4252222.6111434947
• The cube root of 18081397134720 is 26246.8584042415

Scales and comparisons

• 18,081,397,134,720 seconds is equal to 574,932 years, 25 weeks, 6 days, 19 hours, 12 minutes.
• To count from 1 to 18,081,397,134,720 would take you about one million, four hundred thirty-seven thousand, three hundred thirty-one 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 18081397134720 cubic inches would be around 2187.2 feet tall.

Recreational maths with 18081397134720

• 18081397134720 backwards is 02743179318081
• 18081397134720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18081397134720's digits is 54
• More coming soon!