168918899790

Names of 168918899790

• Cardinal: 168918899790 can be written as One hundred sixty-eight billion, nine hundred eighteen million, eight hundred ninety-nine thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 1.6891889979 × 10¹¹

Factors of 168918899790

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 401

Divisors of 168918899790

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 10 15 17 19 30 34 37 38 51 57 74 85 95 102 111 114 137 170 181 185 190 222 255 274 285 323 361 362 370 411 510 543 555 570 629 646 685 703 722 822 905 969 1083 1086 1110 1258 1370 1406 1615 1805 1810 1887 1938 2055 2109 2166 2329 2603 2715 3077 3145 3230 3439 3515 3610 3774 4110 4218 4658 4845 5069 5206 5415 5430 6137 6154 6290 6697 6878 6987 7030 7809 9231 9435 9690 10138 10317 10545 10830 11645 11951 12274 13015 13357 13394 13974 15207 15385 15618 17195 18411 18462 18870 20091 20634 21090 23290 23902 24797 25345 26030 26714 30414 30685 30770 33485 34390 34935 35853 36822 39045 40071 40182 44251 46155 49457 49594 50690 51585 58463 59755 61370 65341 66785 66970 69870 71706 74391 76035 78090 80142 86173 88502 92055 92310 96311 98914 100455 103170 113849 116926 119510 123985 127243 130682 132753 133570 148371 148782 152070 172346 175389 179265 184110 192622 196023 200355 200910 221255 227069 227698 247285 247970 254486 258519 265506 288933 292315 296742 326705 341547 350778 358530 371955 381729 392046 400710 421549 430865 442510 454138 471143 481555 494570 517038 569245 577866 584630 636215 653410 663765 681207 683094 741855 743910 763458 840769 843098 861730 876945 917489 942286 963110 980115 1110797 1135345 1138490 1264647 1272430 1292595 1327530 1362414 1413429 1444665 1483710 1637287 1681538 1707735 1753890 1829909 1834978 1908645 1960230 2107745 2163131 2221594 2270690 2355715 2417617 2522307 2529294 2585190 2752467 2826858 2889330 3274574 3332391 3406035 3415470 3659818 3817290 4203845 4215490 4326262 4587445 4711430 4835234 4911861 5044614 5489727 5504934 5553985 6323235 6489393 6664782 6812070 7067145 7252851 8009431 8186435 8407690 8951717 9149545 9174890 9823722 10815655 10979454 11107970 12088085 12611535 12646470 12978786 13762335 14134290 14505702 15597313 16018862 16372870 16661955 17432291 17903434 18299090 21631310 24028293 24176170 24559305 25223070 26855151 27448635 27524670 31108453 31194626 32446965 33323910 34864582 36264255 40047155 41099489 44758585 46791939 48056586 49118610 52296873 53710302 54897270 62216906 64893930 72528510 77986565 80094310 82198978 87161455 89517170 93325359 93583878 104593746 120141465 123298467 134275755 152179189 155542265 155973130 174322910 186650718 205497445 233959695 240282930 246596934 261484365 268551510 296348947 304358378 311084530 331213529 410994890 456537567 466626795 467919390 522968730 592697894 616492335 662427058 760895945 889046841 913075134 933253590 993640587 1232984670 1481744735 1521791890 1656067645 1778093682 1987281174 2282687835 2963489470 3312135290 4445234205 4565375670 4968202935 5630629993 8890468410 9936405870 11261259986 16891889979 28153149965 33783779958 56306299930 84459449895 168918899790
• Sum of all divisors σ(n): 471263764608
• Sum of proper divisors (its aliquot sum) s(n): 302344864818
• 168918899790 is an abundant number, because the sum of its proper divisors (302344864818) is greater than itself. Its abundance is 133425965028

Bases of 168918899790

• Binary: 10011101010100010110011101110001001110₂
• Hexadecimal: 0x275459DC4E
• Base-36: 25LLY98U

Squares and roots of 168918899790

• 168918899790 squared (168918899790²) is 28533594706264062044100
• 168918899790 cubed (168918899790³) is 4819863424835893581705670460739000
• The square root of 168918899790 is 410997.4449920583
• The cube root of 168918899790 is 5527.8902840109

Scales and comparisons

• 168,918,899,790 seconds is equal to 5,371 years, 5 weeks, 20 hours, 36 minutes, 30 seconds.
• To count from 1 to 168,918,899,790 would take you about ten thousand, seven hundred forty-two 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 168918899790 cubic inches would be around 460.7 feet tall.

Recreational maths with 168918899790

• 168918899790 backwards is 097998819861
• The number of decimal digits it has is: 12
• The sum of 168918899790's digits is 75
• More coming soon!