421664934978

Names of 421664934978

• Cardinal: 421664934978 can be written as Four hundred twenty-one billion, six hundred sixty-four million, nine hundred thirty-four thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 4.21664934978 × 10¹¹

Factors of 421664934978

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 652

Divisors of 421664934978

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 37 42 54 63 73 74 81 109 111 126 146 162 189 218 219 222 243 259 327 333 378 421 438 486 511 518 567 654 657 666 763 777 842 981 999 1022 1134 1263 1314 1526 1533 1554 1701 1962 1971 1998 2289 2331 2526 2701 2943 2947 2997 3066 3402 3789 3942 4033 4578 4599 4662 5402 5886 5894 5913 5994 6867 6993 7578 7957 8066 8103 8829 8841 8991 9198 11367 11826 12099 13734 13797 13986 15577 15914 16206 17658 17682 17739 17982 18907 20601 20979 22734 23871 24198 24309 26487 26523 27594 28231 30733 31154 34101 35478 36297 37814 41202 41391 41958 45889 46731 47742 48618 52974 53046 55699 56462 56721 61466 61803 62937 68202 71613 72594 72927 79569 82782 84693 91778 92199 93462 102303 108891 109039 111398 113442 123606 124173 125874 137667 140193 143226 145854 159138 167097 169386 170163 184398 185409 204606 214839 215131 217782 218078 218781 238707 248346 254079 275334 276597 280386 294409 321223 326673 327117 334194 340326 370818 413001 420579 429678 430262 437562 477414 501291 508158 510489 553194 588818 642446 644517 645393 653346 654234 656343 716121 762237 826002 829791 841158 883227 963669 980019 981351 1002582 1020978 1137121 1239003 1261737 1289034 1290786 1312686 1432242 1503873 1524474 1531467 1659582 1697893 1766454 1927338 1933551 1936179 1960038 1962702 2060863 2274242 2286711 2478006 2489373 2523474 2649681 2891007 2944053 3007746 3062934 3349897 3395786 3411363 3717009 3785211 3867102 3872358 4121726 4511619 4573422 4594401 4978746 5093679 5299362 5782014 5808537 5888106 6182589 6699794 6822726 6860133 7434018 7468119 7570422 7949043 7959847 8673021 8832159 9023238 9188802 10049691 10187358 10234089 11151027 11617074 11885251 12365178 13534857 13720266 14936238 15281037 15898086 15919694 17346042 17425611 17664318 18547767 20099382 20468178 22302054 23449279 23770502 23847129 23879541 26019063 26496477 27069714 30149073 30562074 30702267 34851222 35655753 37095534 45843111 46898558 47694258 47759082 52038126 52276833 52992954 55643301 60298146 61404534 70347837 71311506 71541387 71638623 78057189 90447219 91686222 92106801 104553666 106967259 111286602 123946189 137529333 140695674 143082774 143277246 156114378 166929903 180894438 184213602 211043511 213934518 214915869 247892378 271341657 275058666 276320403 320901777 333859806 371838567 412587999 422087022 429831738 500789709 542683314 552640806 633130533 641803554 644747607 743677134 814024971 825175998 867623323 962705331 1001579418 1115515701 1266261066 1289495214 1628049942 1735246646 1899391599 1925410662 1934242821 2231031402 2602869969 2888115993 3346547103 3798783198 3868485642 5205739938 5698174797 5776231986 6693094206 7808609907 10039641309 11396349594 15617219814 20079282618 23425829721 30118923927 46851659442 60237847854 70277489163 140554978326 210832467489 421664934978
• Sum of all divisors σ(n): 1140336637440
• Sum of proper divisors (its aliquot sum) s(n): 718671702462
• 421664934978 is an abundant number, because the sum of its proper divisors (718671702462) is greater than itself. Its abundance is 297006767484

Bases of 421664934978

• Binary: 110001000101101001100000100110001000010₂
• Hexadecimal: 0x622D304C42
• Base-36: 5DPKEY4I

Squares and roots of 421664934978

• 421664934978 squared (421664934978²) is 177801317390000967860484
• 421664934978 cubed (421664934978³) is 74972580936257498780248053635609352
• The square root of 421664934978 is 649357.3245740745
• The cube root of 421664934978 is 7498.7549635691

Scales and comparisons

• 421,664,934,978 seconds is equal to 13,407 years, 33 weeks, 2 days, 4 hours, 36 minutes, 18 seconds.
• To count from 1 to 421,664,934,978 would take you about twenty-six thousand, eight hundred fifteen 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 421664934978 cubic inches would be around 624.9 feet tall.

Recreational maths with 421664934978

• 421664934978 backwards is 879439466124
• 421664934978 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 421664934978's digits is 63
• More coming soon!