21472943665128438

Names of 21472943665128438

• Cardinal: 21472943665128438 can be written as Twenty-one quadrillion, four hundred seventy-two trillion, nine hundred forty-three billion, six hundred sixty-five million, one hundred twenty-eight thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1472943665128438 × 10¹⁶

Factors of 21472943665128438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 462

Divisors of 21472943665128438

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 49 57 98 114 133 147 266 294 343 361 399 431 686 722 798 862 931 1029 1083 1293 1862 2058 2166 2527 2586 2793 3017 5054 5586 6034 6517 6859 7581 8189 9051 13034 13718 15162 16378 17689 18102 19551 20577 21119 24567 35378 39102 41154 42238 48013 49134 53067 57323 63357 96026 106134 114646 123823 126714 130321 144039 147833 155591 171969 185761 247646 260642 288078 295666 311182 336091 343938 371469 371522 390963 401261 443499 466773 557283 672182 742938 781926 802522 886998 912247 933546 1008273 1089137 1114566 1203783 1300327 1824494 2016546 2178274 2352637 2407566 2600654 2736741 2808827 2956229 3267411 3529459 3900981 4705274 5473482 5617654 5912458 6385729 6534822 7057911 7058918 7623959 7801962 8426481 8868687 9102289 10588377 12771458 14115822 15247918 16852962 17737374 18204578 19157187 20693603 21176754 22871877 24706213 27306867 38314374 41387206 44700103 45743754 49412426 53367713 54613734 56168351 62080809 63716023 67059721 74118639 80062991 89400206 106735426 112336702 124161618 127432046 134100309 134119442 144855221 148237278 160103139 160125982 168505053 172943491 191148069 201179163 240188973 268200618 289710442 320206278 337010106 345886982 382296138 393178457 402358326 434565663 469418047 480377946 518830473 560440937 786356914 869131326 938836094 1013986547 1037660946 1120881874 1179535371 1210604437 1274134699 1408254141 1521196829 1681322811 2027973094 2359070742 2421208874 2548269398 2752249199 2816508282 3041959641 3042393658 3285926329 3362645622 3631813311 3822404097 3923086559 4563590487 5504498398 6083919282 6571852658 7263626622 7644808194 7846173118 8256747597 8918942893 9127180974 9857778987 10648377803 11769259677 16513495194 17837885786 19265744393 19715557974 21296755606 23001484303 23538519354 24208559281 26756828679 27461605913 28902739751 31945133409 38531488786 46002968606 48417118562 53513657358 54923211826 57797233179 57805479502 62432600251 63890266818 69004452909 72625677843 74538644621 82384817739 86708219253 115594466358 124865200502 138008905818 145251355686 149077289242 164769635478 169459914967 173416438506 187297800753 202319178257 223615933863 338919829934 374595601506 404638356514 437028201757 447231867726 508379744901 521770512347 549152055269 606957534771 874056403514 1016759489802 1043541024694 1098304110538 1186219404769 1213915069542 1311084605271 1416234247799 1565311537041 1647456165807 2372438809538 2622169210542 2832468495598 3130623074082 3294912331614 3558658214307 3844064386883 4248702743397 7117316428614 7688128773766 8303535833383 8497405486794 9913639734593 10433889050111 11532193160649 16607071666766 19827279469186 20867778100222 23064386321298 24910607500149 26908450708181 29740919203779 31301667150333 49821215000298 53816901416362 59481838407558 62603334300666 73037223350777 80725352124543 146074446701554 161450704249086 188359154957267 219111670052331 376718309914534 438223340104662 511260563455439 565077464871801 1022521126910878 1130154929743602 1533781690366317 3067563380732634 3578823944188073 7157647888376146 10736471832564219 21472943665128438
• Sum of all divisors σ(n): 52987958401075200
• Sum of proper divisors (its aliquot sum) s(n): 31515014735946762
• 21472943665128438 is an abundant number, because the sum of its proper divisors (31515014735946762) is greater than itself. Its abundance is 10042071070818324

Bases of 21472943665128438

• Binary: 1001100010010011000011101001011011100010010001111110110₂
• Hexadecimal: 0x4C49874B7123F6
• Base-36: 5VFIU4Z8P2U

Squares and roots of 21472943665128438

• 21472943665128438 squared (21472943665128438²) is 461087309645779516101907036319844
• 21472943665128438 cubed (21472943665128438³) is 9900901824729455786143494819452215869519108123672
• The square root of 21472943665128438 is 146536492.6055227991
• The cube root of 21472943665128438 is 277948.1972430995

Scales and comparisons

• 21,472,943,665,128,438 seconds is equal to 682,773,188 years, 19 weeks, 3 days, 14 hours, 47 minutes, 18 seconds.
• To count from 1 to 21,472,943,665,128,438 would take you about two billion, forty-eight million, three hundred nineteen thousand, five hundred sixty-five 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 21472943665128438 cubic inches would be around 23162.3 feet tall.

Recreational maths with 21472943665128438

• 21472943665128438 backwards is 83482156634927412
• The number of decimal digits it has is: 17
• The sum of 21472943665128438's digits is 75
• More coming soon!