9142857990

Names of 9142857990

• Cardinal: 9142857990 can be written as Nine billion, one hundred forty-two million, eight hundred fifty-seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 9.14285799 × 10⁹

Factors of 9142857990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 326

Divisors of 9142857990

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 37 42 45 54 63 70 73 74 81 90 105 111 126 135 146 162 185 189 199 210 219 222 243 259 270 315 333 365 370 378 398 405 438 486 511 518 555 567 597 630 657 666 730 777 810 945 995 999 1022 1095 1110 1134 1194 1215 1295 1314 1393 1533 1554 1665 1701 1791 1890 1971 1990 1998 2190 2331 2430 2555 2590 2701 2786 2835 2985 2997 3066 3285 3330 3402 3582 3885 3942 4179 4599 4662 4995 5110 5373 5402 5670 5913 5970 5994 6570 6965 6993 7363 7665 7770 8103 8358 8505 8955 8991 9198 9855 9990 10746 11655 11826 12537 13505 13797 13930 13986 14527 14726 14985 15330 16119 16206 17010 17739 17910 17982 18907 19710 20895 20979 22089 22995 23310 24309 25074 26865 27010 27594 29054 29565 29970 32238 34965 35478 36815 37611 37814 40515 41391 41790 41958 43581 44178 44955 45990 48357 48618 51541 53730 56721 59130 62685 62937 66267 68985 69930 72635 72927 73630 75222 80595 81030 82782 87162 88695 89910 94535 96714 101689 103082 104895 110445 112833 113442 121545 124173 125370 125874 130743 132534 137970 145270 145854 154623 161190 170163 177390 188055 189070 198801 203378 206955 209790 217905 218781 220890 225666 241785 243090 248346 257705 261486 283605 305067 309246 314685 331335 338499 340326 364635 376110 392229 397602 413910 435810 437562 463869 483570 508445 510489 515410 537499 564165 567210 596403 610134 620865 629370 653715 656343 662670 676998 729270 773115 784458 850815 915201 927738 994005 1016890 1020978 1074998 1093905 1128330 1176687 1192806 1241730 1307430 1312686 1391607 1525335 1531467 1546230 1612497 1692495 1701630 1789209 1830402 1961145 1988010 2187810 2319345 2353374 2552445 2687495 2745603 2783214 2982015 3050670 3062934 3224994 3281715 3384990 3530061 3578418 3762493 3922290 4174821 4576005 4594401 4638690 4837491 5104890 5374990 5491206 5883435 5964030 6563430 6958035 7060122 7524986 7657335 8062485 8236809 8349642 8946045 9152010 9188802 9674982 11287479 11766870 12524463 13728015 13916070 14512473 15314670 16124970 16473618 17650305 17892090 18812465 20874105 22574958 22972005 24187455 24710427 25048926 27456030 29024946 33862437 35300610 37624930 41184045 41748210 43537419 45944010 48374910 49420854 56437395 62622315 67724874 72562365 82368090 87074838 101587311 112874790 123552135 125244630 130612257 145124730 169312185 203174622 217687095 247104270 261224514 304761933 338624370 435374190 507936555 609523866 653061285 914285799 1015873110 1306122570 1523809665 1828571598 3047619330 4571428995 9142857990
• Sum of all divisors σ(n): 29478758400
• Sum of proper divisors (its aliquot sum) s(n): 20335900410
• 9142857990 is an abundant number, because the sum of its proper divisors (20335900410) is greater than itself. Its abundance is 11193042420

Bases of 9142857990

• Binary: 1000100000111101001111000100000110₂
• Hexadecimal: 0x220F4F106
• Base-36: 477F6DI

Squares and roots of 9142857990

• 9142857990 squared (9142857990²) is 83591852225306840100
• 9142857990 cubed (9142857990³) is 764268434017045923209937399000
• The square root of 9142857990 is 95618.2931765675
• The cube root of 9142857990 is 2091.0318988813

Scales and comparisons

• 9,142,857,990 seconds is equal to 290 years, 37 weeks, 1 day, 2 hours, 46 minutes, 30 seconds.
• To count from 1 to 9,142,857,990 would take you about five hundred eighty-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 9142857990 cubic inches would be around 174.3 feet tall.

Recreational maths with 9142857990

• 9142857990 backwards is 0997582419
• 9142857990 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 9142857990's digits is 54
• More coming soon!