21356811504

Names of 21356811504

• Cardinal: 21356811504 can be written as Twenty-one billion, three hundred fifty-six million, eight hundred eleven thousand, five hundred four.

Scientific notation

• Scientific notation: 2.1356811504 × 10¹⁰

Factors of 21356811504

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 161

Divisors of 21356811504

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 29 36 42 48 49 56 58 59 61 63 72 84 87 98 112 116 118 122 126 144 147 168 174 177 183 196 203 232 236 244 252 261 294 336 348 354 366 392 406 413 427 441 464 472 488 504 522 531 549 588 609 696 708 732 784 812 826 841 854 882 944 976 1008 1044 1062 1098 1176 1218 1239 1281 1392 1416 1421 1464 1624 1652 1682 1708 1711 1764 1769 1827 2088 2124 2196 2352 2436 2478 2523 2562 2832 2842 2891 2928 2989 3248 3304 3364 3416 3422 3528 3538 3599 3654 3717 3843 4176 4248 4263 4392 4872 4956 5046 5124 5133 5307 5684 5782 5887 5978 6608 6728 6832 6844 7056 7076 7198 7308 7434 7569 7686 8496 8526 8673 8784 8967 9744 9912 10092 10248 10266 10614 10797 11368 11564 11774 11956 11977 12383 12789 13456 13688 14152 14396 14616 14868 15138 15372 15399 15921 17052 17346 17661 17934 19824 20184 20496 20532 21228 21594 22736 23128 23548 23912 23954 24766 25193 25578 26019 26901 27376 28304 28792 29232 29736 30276 30744 30798 31842 32391 34104 34692 35322 35868 35931 37149 40368 41064 41209 42456 43188 46256 47096 47824 47908 49532 49619 50386 51156 51301 52038 52983 53802 57584 59472 60552 61488 61596 63684 64782 68208 69384 70644 71736 71862 74298 75579 82128 82418 83839 84912 86376 86681 94192 95816 99064 99238 100772 102312 102602 104076 104371 105966 107604 107793 111447 121104 123192 123627 127368 129564 138768 141288 143472 143724 148596 148857 151158 153903 164836 167678 172752 173362 176351 191632 198128 198476 201544 204624 205204 208152 208742 211932 215208 215586 222894 226737 246384 247254 251517 254736 259128 260043 282576 287448 297192 297714 302316 307806 313113 329672 335356 346724 347333 352702 359107 370881 396952 403088 410408 416304 417484 423864 430416 431172 445788 446571 453474 461709 494508 503034 518256 520086 529053 574896 594384 595428 604632 615612 626226 659344 670712 693448 694666 705404 718214 730597 741762 754551 780129 793904 820816 834968 847728 862344 891576 893142 906948 923418 939339 989016 1006068 1040172 1041999 1058106 1077321 1190856 1209264 1231224 1252452 1341424 1386896 1389332 1410808 1436428 1461194 1483524 1509102 1560258 1587159 1669936 1724688 1783152 1786284 1813896 1846836 1878678 1978032 2012136 2080344 2083998 2116212 2154642 2191791 2381712 2431331 2462448 2504904 2513749 2778664 2821616 2872856 2922388 2967048 3018204 3026759 3120516 3125997 3174318 3231963 3572568 3627792 3693672 3757356 4024272 4160688 4167996 4232424 4309284 4383582 4862662 5009808 5027498 5114179 5557328 5745712 5844776 5934096 6036408 6053518 6241032 6251994 6348636 6463926 6575373 7145136 7293993 7387344 7514712 7541247 8335992 8464848 8618568 8767164 9080277 9725324 10054996 10228358 11689552 12072816 12107036 12482064 12503988 12697272 12927852 13150746 14587986 15029424 15082494 15342537 16671984 17237136 17534328 18160554 19450648 20109992 20456716 21187313 21881979 22623741 24214072 25007976 25394544 25855704 26301492 27240831 29175972 30164988 30685074 35068656 36321108 38901296 40219984 40913432 42374626 43763958 45247482 46027611 48428144 50015952 51711408 52602984 54481662 58351944 60329976 61370148 63561939 72642216 81826864 84749252 87527916 90494964 92055222 105205968 108963324 116703888 120659952 122740296 127123878 145284432 148311191 169498504 175055832 180989928 184110444 190685817 217926648 245480592 254247756 296622382 338997008 350111664 361979856 368220888 381371634 435853296 444933573 508495512 593244764 736441776 762743268 889867146 1016991024 1186489528 1334800719 1525486536 1779734292 2372979056 2669601438 3050973072 3559468584 5339202876 7118937168 10678405752 21356811504
• Sum of all divisors σ(n): 74428796520
• Sum of proper divisors (its aliquot sum) s(n): 53071985016
• 21356811504 is an abundant number, because the sum of its proper divisors (53071985016) is greater than itself. Its abundance is 31715173512

Bases of 21356811504

• Binary: 10011111000111101110001010011110000₂
• Hexadecimal: 0x4F8F714F0
• Base-36: 9T7AL80

Squares and roots of 21356811504

• 21356811504 squared (21356811504²) is 456113397617386742016
• 21356811504 cubed (21356811504³) is 9741127857363531362304388952064
• The square root of 21356811504 is 146139.6985900819
• The cube root of 21356811504 is 2774.4621527865

Scales and comparisons

• 21,356,811,504 seconds is equal to 679 years, 4 weeks, 1 day, 7 hours, 38 minutes, 24 seconds.
• To count from 1 to 21,356,811,504 would take you about one thousand, three hundred fifty-eight 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 21356811504 cubic inches would be around 231.2 feet tall.

Recreational maths with 21356811504

• 21356811504 backwards is 40511865312
• 21356811504 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21356811504's digits is 36
• More coming soon!