21209008197564

Names of 21209008197564

• Cardinal: 21209008197564 can be written as Twenty-one trillion, two hundred nine billion, eight million, one hundred ninety-seven thousand, five hundred sixty-four.

Scientific notation

• Scientific notation: 2.1209008197564 × 10¹³

Factors of 21209008197564

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 232

Divisors of 21209008197564

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 37 44 54 66 74 99 108 111 121 132 148 179 198 222 242 297 333 358 363 396 407 444 484 537 594 666 716 726 814 999 1074 1089 1188 1221 1332 1369 1452 1611 1628 1969 1998 2148 2178 2442 2738 3222 3267 3663 3938 3996 4107 4356 4477 4833 4884 5476 5907 6444 6534 6623 7326 7876 8214 8954 9666 10989 11814 12321 13068 13246 13431 14652 15059 16428 17721 17908 19332 19869 21659 21978 23628 24642 26492 26862 30118 32041 35442 36963 39738 40293 43318 43956 45177 49284 50653 53163 53724 59607 60236 64082 64977 70884 72853 73926 79476 80586 86636 90354 96123 101306 106326 119214 120879 128164 129954 135531 145706 147852 151959 161172 165649 178821 180708 192246 194931 202612 212652 218559 238428 241758 245051 259908 271062 288369 291412 303918 331298 352451 357642 384492 389862 406593 437118 455877 483516 490102 496947 542124 557183 576738 584793 607836 655677 662596 704902 715284 735153 779724 801383 813186 865107 874236 911754 980204 993894 1057353 1114366 1153476 1169586 1185517 1311354 1367631 1409804 1470306 1490841 1602766 1626372 1671549 1730214 1823508 1967031 1987788 2114706 2205459 2228732 2339172 2371034 2404149 2622708 2695561 2735262 2940612 2981682 3172059 3205532 3343098 3460428 3556551 3876961 3934062 4229412 4410918 4472523 4742068 4808298 5014647 5391122 5470524 5963364 6129013 6344118 6616377 6686196 7113102 7212447 7753922 7868124 8086683 8821836 8945046 9066887 9516177 9616596 10029294 10669653 10782244 11630883 12258026 12688236 13040687 13232754 14226204 14424894 15043941 15507844 16173366 17890092 18133774 18387039 19032354 20058588 21339306 21637341 23261766 24260049 24516052 26081374 26465508 27200661 28849788 29651171 30087882 32008959 32346732 34892649 36267548 36774078 38064708 39122061 42678612 43274682 43864129 46523532 48520098 52162748 54401322 55161117 59302342 60175764 64017918 69785298 72780147 73548156 78244122 81601983 86549364 87728258 88953513 97040196 99735757 104677947 108802644 110322234 117366183 118604684 128035836 131592387 139570596 143447557 145560294 156488244 163203966 165483351 175456516 177907026 199471514 209355894 220644468 234732366 244805949 263184774 266860539 286895114 291120588 299207271 326407932 330966702 352098549 355814052 394777161 398943028 418711788 430342671 469464732 482505419 489611898 526369548 533721078 573790228 598414542 661933404 704197098 789554322 800581617 860685342 897621813 965010838 979223796 1067442156 1097093327 1184331483 1196829084 1291028013 1408394196 1447516257 1579108644 1601163234 1622972773 1721370684 1795243626 1930021676 2194186654 2368662966 2582056026 2692865439 2895032514 3202326468 3245945546 3291279981 3590487252 3873084039 4342548771 4388373308 4737325932 4868918319 5164112052 5307559609 5385730878 5790065028 6491891092 6582559962 7746168078 8685097542 9737836638 9873839943 10615119218 10771461756 13027646313 13165119924 14606754957 15492336156 15922678827 17370195084 17852700503 19475673276 19747679886 21230238436 26055292626 29213509914 29621519829 31845357654 35705401006 39495359772 43820264871 47768036481 52110585252 53558101509 58427019828 59243039658 63690715308 71410802012 87640529742 95536072962 107116203018 118486079316 143304109443 160674304527 175281059484 191072145924 196379705533 214232406036 286608218886 321348609054 392759411066 482022913581 573216437772 589139116599 642697218108 785518822132 964045827162 1178278233198 1767417349797 1928091654324 2356556466396 3534834699594 5302252049391 7069669399188 10604504098782 21209008197564
• Sum of all divisors σ(n): 62467316682400
• Sum of proper divisors (its aliquot sum) s(n): 41258308484836
• 21209008197564 is an abundant number, because the sum of its proper divisors (41258308484836) is greater than itself. Its abundance is 20049300287272

Bases of 21209008197564

• Binary: 100110100101000011011011001100100111110111100₂
• Hexadecimal: 0x134A1B664FBC
• Base-36: 7INA7VP30

Squares and roots of 21209008197564

• 21209008197564 squared (21209008197564²) is 449822028724336952055534096
• 21209008197564 cubed (21209008197564³) is 9540279094659331493736344682236306142144
• The square root of 21209008197564 is 4605323.8971394835
• The cube root of 21209008197564 is 27680.4695780245

Scales and comparisons

• 21,209,008,197,564 seconds is equal to 674,380 years, 44 weeks, 3 days, 21 hours, 59 minutes, 24 seconds.
• To count from 1 to 21,209,008,197,564 would take you about one million, six hundred eighty-five thousand, nine hundred fifty-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 21209008197564 cubic inches would be around 2306.7 feet tall.

Recreational maths with 21209008197564

• 21209008197564 backwards is 46579180090212
• 21209008197564 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21209008197564's digits is 54
• More coming soon!