21009522240

Names of 21009522240

• Cardinal: 21009522240 can be written as Twenty-one billion, nine million, five hundred twenty-two thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.100952224 × 10¹⁰

Factors of 21009522240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 70

Divisors of 21009522240

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 49 53 56 60 63 64 70 72 80 84 90 96 98 105 106 112 120 126 140 144 147 159 160 168 180 192 196 210 212 224 240 245 252 265 280 288 294 315 318 320 336 360 371 392 420 424 441 448 477 480 490 504 530 560 576 588 630 636 672 720 735 742 784 795 840 848 882 954 960 980 1008 1060 1113 1120 1176 1260 1272 1344 1440 1470 1484 1568 1590 1680 1696 1764 1855 1908 1960 2016 2120 2205 2226 2240 2352 2385 2520 2544 2597 2809 2880 2940 2968 3136 3180 3339 3360 3392 3528 3710 3816 3920 4032 4240 4410 4452 4704 4770 5040 5088 5194 5565 5618 5880 5936 6360 6678 6720 7056 7420 7632 7791 7840 8427 8480 8820 8904 9408 9540 10080 10176 10388 11130 11236 11760 11872 12720 12985 13356 14045 14112 14840 15264 15582 15680 16695 16854 16960 17640 17808 19080 19663 20160 20776 22260 22472 23373 23520 23744 25281 25440 25970 26712 28090 28224 29680 30528 31164 33390 33708 35280 35616 38160 38955 39326 41552 42135 44520 44944 46746 47040 50562 50880 51940 53424 56180 58989 59360 62328 66780 67416 70560 71232 76320 77910 78652 83104 84270 89040 89888 93492 98315 101124 103880 106848 112360 116865 117978 118720 124656 126405 133560 134832 137641 141120 148877 152640 155820 157304 166208 168540 176967 178080 179776 186984 196630 202248 207760 213696 224720 233730 235956 249312 252810 267120 269664 275282 294945 297754 311640 314608 337080 353934 356160 373968 393260 404496 412923 415520 446631 449440 467460 471912 498624 505620 534240 539328 550564 589890 595508 623280 629216 674160 688205 707868 744385 747936 786520 808992 825846 831040 884835 893262 898880 934920 943824 1011240 1042139 1068480 1101128 1179780 1191016 1238769 1246560 1258432 1339893 1348320 1376410 1415736 1488770 1495872 1573040 1617984 1651692 1769670 1786524 1869840 1887648 2022480 2064615 2084278 2202256 2233155 2359560 2382032 2477538 2493120 2679786 2696640 2752820 2831472 2977540 3126417 3146080 3303384 3539340 3573048 3739680 3775296 4044960 4129230 4168556 4404512 4466310 4719120 4764064 4955076 5210695 5359572 5505640 5662944 5955080 6193845 6252834 6292160 6606768 6699465 7078680 7146096 7294973 7479360 8089920 8258460 8337112 8809024 8932620 9379251 9438240 9528128 9910152 10421390 10719144 11011280 11325888 11910160 12387690 12505668 13213536 13398930 14157360 14292192 14589946 15632085 16516920 16674224 17865240 18758502 18876480 19820304 20842780 21438288 21884919 22022560 23820320 24775380 25011336 26427072 26797860 28314720 28584384 29179892 31264170 33033840 33348448 35730480 36474865 37517004 39640608 41685560 42876576 43769838 44045120 46896255 47640640 49550760 50022672 53595720 56629440 58359784 62528340 65654757 66067680 66696896 71460960 72949730 75034008 79281216 83371120 85753152 87539676 93792510 99101520 100045344 107191440 109424595 116719568 125056680 131309514 132135360 142921920 145899460 150068016 166742240 175079352 187585020 198203040 200090688 214382880 218849190 233439136 250113360 262619028 291798920 300136032 328273785 333484480 350158704 375170040 396406080 428765760 437698380 466878272 500226720 525238056 583597840 600272064 656547570 700317408 750340080 875396760 1000453440 1050476112 1167195680 1313095140 1400634816 1500680160 1750793520 2100952224 2334391360 2626190280 3001360320 3501587040 4201904448 5252380560 7003174080 10504761120 21009522240
• Sum of all divisors σ(n): 85678777080
• Sum of proper divisors (its aliquot sum) s(n): 64669254840
• 21009522240 is an abundant number, because the sum of its proper divisors (64669254840) is greater than itself. Its abundance is 43659732600

Bases of 21009522240

• Binary: 10011100100010000111101111001000000₂
• Hexadecimal: 0x4E443DE40
• Base-36: 9NGIZ40

Squares and roots of 21009522240

• 21009522240 squared (21009522240²) is 441400024753054617600
• 21009522240 cubed (21009522240³) is 9273603636785851496401895424000
• The square root of 21009522240 is 144946.6185876717
• The cube root of 21009522240 is 2759.3411155613

Scales and comparisons

• 21,009,522,240 seconds is equal to 668 years, 1 week, 6 days, 18 hours, 24 minutes.
• To count from 1 to 21,009,522,240 would take you about one thousand, three hundred thirty-six 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 21009522240 cubic inches would be around 229.9 feet tall.

Recreational maths with 21009522240

• 21009522240 backwards is 04222590012
• The number of decimal digits it has is: 11
• The sum of 21009522240's digits is 27
• More coming soon!