689431379840

Names of 689431379840

• Cardinal: 689431379840 can be written as Six hundred eighty-nine billion, four hundred thirty-one million, three hundred seventy-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.8943137984 × 10¹¹

Factors of 689431379840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 10490

Divisors of 689431379840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 280 320 392 448 490 560 640 784 896 980 1120 1568 1960 2240 2903 3136 3920 4480 5806 6272 7573 7840 11612 14515 15146 15680 20321 23224 29030 30292 31360 37865 40642 46448 53011 58060 60584 75730 81284 92896 101605 106022 116120 121168 142247 151460 162568 185792 203210 212044 232240 242336 265055 284494 302920 325136 371077 371584 406420 424088 464480 484672 530110 568988 605840 650272 711235 742154 812840 848176 928960 969344 1060220 1137976 1211680 1300544 1422470 1484308 1625680 1696352 1855385 1857920 2120440 2275952 2423360 2601088 2844940 2968616 3251360 3392704 3710770 4240880 4551904 4846720 5689880 5937232 6502720 6785408 7421540 8481760 9103808 11379760 11874464 13005440 14843080 16963520 18207616 21984419 22759520 23748928 29686160 33927040 43968838 45519040 47497856 59372320 87937676 91038080 109922095 118744640 153890933 175875352 219844190 237489280 307781866 351750704 439688380 615563732 703501408 769454665 879376760 1077236531 1231127464 1407002816 1538909330 1758753520 2154473062 2462254928 2814005632 3077818660 3517507040 4308946124 4924509856 5386182655 6155637320 7035014080 8617892248 9849019712 10772365310 12311274640 14070028160 17235784496 19698039424 21544730620 24622549280 34471568992 43089461240 49245098560 68943137984 86178922480 98490197120 137886275968 172357844960 344715689920 689431379840
• Sum of all divisors σ(n): 1918174880160
• Sum of proper divisors (its aliquot sum) s(n): 1228743500320
• 689431379840 is an abundant number, because the sum of its proper divisors (1228743500320) is greater than itself. Its abundance is 539312120480

Bases of 689431379840

• Binary: 1010000010000101010011111111111110000000₂
• Hexadecimal: 0xA0854FFF80
• Base-36: 8SPXN5A8

Squares and roots of 689431379840

• 689431379840 squared (689431379840²) is 475315627508086358425600
• 689431379840 cubed (689431379840³) is 327697508932415438847242217979904000
• The square root of 689431379840 is 830320.0466326223
• The cube root of 689431379840 is 8834.1278911365

Scales and comparisons

• 689,431,379,840 seconds is equal to 21,921 years, 40 weeks, 5 days, 20 hours, 37 minutes, 20 seconds.
• To count from 1 to 689,431,379,840 would take you about forty-three thousand, eight hundred forty-three 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 689431379840 cubic inches would be around 736.2 feet tall.

Recreational maths with 689431379840

• 689431379840 backwards is 048973134986
• The number of decimal digits it has is: 12
• The sum of 689431379840's digits is 62
• More coming soon!