21242228280

Names of 21242228280

• Cardinal: 21242228280 can be written as Twenty-one billion, two hundred forty-two million, two hundred twenty-eight thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.124222828 × 10¹⁰

Factors of 21242228280

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 227

Divisors of 21242228280

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 17 20 21 24 26 28 30 34 35 39 40 42 51 52 53 56 60 65 68 70 78 84 85 91 102 104 105 106 119 120 127 130 136 140 156 159 168 170 182 195 204 210 212 221 238 254 255 260 265 273 280 289 312 318 340 357 364 371 381 390 408 420 424 442 455 476 508 510 520 530 546 578 595 635 636 663 680 689 714 728 742 762 780 795 840 867 884 889 901 910 952 1016 1020 1060 1092 1105 1113 1156 1190 1270 1272 1326 1365 1378 1428 1445 1484 1524 1547 1560 1590 1651 1734 1768 1778 1785 1802 1820 1855 1905 2023 2040 2067 2120 2159 2184 2210 2226 2312 2380 2540 2652 2667 2703 2730 2756 2856 2890 2968 3048 3094 3180 3302 3315 3445 3468 3556 3570 3604 3640 3710 3757 3810 4046 4134 4318 4335 4420 4445 4452 4505 4641 4760 4823 4953 5080 5304 5334 5406 5460 5512 5565 5780 6069 6188 6307 6360 6477 6604 6630 6731 6890 6936 7112 7140 7208 7420 7514 7620 7735 8092 8255 8268 8636 8670 8840 8890 8904 9010 9282 9646 9906 10115 10335 10668 10795 10812 10920 11130 11271 11557 11560 11713 12138 12376 12614 12954 13208 13260 13335 13462 13515 13780 14280 14469 14840 15028 15113 15240 15317 15470 16184 16510 16536 17272 17340 17780 18020 18564 18785 18921 19292 19812 20193 20230 20670 21336 21590 21624 22260 22542 23114 23205 23426 24115 24276 24765 25228 25908 26299 26520 26670 26924 27030 27560 28067 28938 30056 30226 30345 30634 30940 31535 32385 33020 33655 34671 34680 35139 35560 36040 36703 37128 37570 37842 38584 39624 40386 40460 41340 43180 44520 45084 45339 45951 46228 46410 46852 47117 48230 48552 49530 50456 51816 52598 53340 53848 54060 56134 56355 57785 57876 58565 60452 60690 61268 61880 63070 64770 66040 67310 69342 70278 72345 73406 75140 75565 75684 76585 78897 80772 80920 81991 82680 84201 86360 87503 90168 90678 91902 92456 92820 93704 94234 94605 96460 99060 100965 105196 106680 107219 108120 110109 112268 112710 114427 115570 115752 117130 120904 121380 122536 126140 129540 131495 134620 138684 140335 140556 141351 144690 146812 150280 151130 151368 153170 157794 161544 163982 168402 173355 175006 175695 181356 183515 183804 185640 188468 189210 192920 196469 198120 199121 201930 210392 214438 220218 224536 225420 226695 228854 229755 231140 234260 235585 242760 245973 252280 256921 259080 262509 262990 269240 277368 280670 281112 282702 289380 293624 302260 306340 315588 321657 327964 336804 343281 346710 350012 351390 362712 367030 367608 376936 378420 392938 394485 398242 403860 409955 421005 428876 437515 440436 450840 453390 457708 459510 462280 468520 471170 477139 491946 513842 525018 525980 536095 550545 561340 565404 572135 578760 589407 597363 604520 612521 612680 631176 643314 655928 673608 686562 693420 700024 702780 706755 734060 756840 770763 785876 788970 796484 800989 807720 819910 842010 857752 875030 880872 906780 915416 919020 942340 954278 982345 983892 995605 1027684 1050036 1051960 1072190 1101090 1122680 1130808 1144270 1178814 1194726 1225042 1229865 1284605 1286628 1312545 1373124 1386840 1393847 1405560 1413510 1431417 1468120 1487551 1541526 1571752 1577940 1592968 1601978 1608285 1639820 1684020 1716405 1750060 1813560 1837563 1838040 1884680 1908556 1945259 1964690 1967784 1991210 2055368 2100072 2144380 2202180 2288540 2357628 2385695 2389452 2402967 2450084 2459730 2569210 2573256 2625090 2746248 2787694 2827020 2862834 2947035 2975102 2986815 3062605 3083052 3155880 3203956 3216570 3279640 3339973 3368040 3432810 3500120 3675126 3817112 3853815 3890518 3929380 3982420 4004945 4181541 4288760 4404360 4462653 4577080 4715256 4771390 4778904 4805934 4900168 4919460 5138420 5250180 5575388 5654040 5725668 5835777 5894070 5950204 5973630 6125210 6166104 6407912 6433140 6679946 6865620 6969235 7157085 7350252 7437755 7707630 7781036 7858760 7964840 8009890 8363082 8925306 9187815 9542780 9611868 9726295 9838920 10019919 10276840 10412857 10500360 11150776 11451336 11671554 11788140 11900408 11947260 12014835 12250420 12866280 13359892 13616813 13731240 13938470 14314170 14700504 14875510 15415260 15562072 16019780 16699865 16726164 17850612 18375630 19085560 19223736 19452590 20039838 20825714 20907705 22313265 23343108 23576280 23894520 24029670 24500840 25288367 26719784 27233626 27876940 28628340 29178885 29751020 30830520 31238571 32039560 33399730 33452328 35701224 36751260 38905180 40079676 40850439 41651428 41815410 44626530 46686216 48059340 50099595 50576734 52064285 54467252 55753880 57256680 58357770 59502040 62477142 66799460 68084065 73502520 75865101 77810360 80159352 81700878 83302856 83630820 89253060 96118680 100199190 101153468 104128570 108934504 116715540 124954284 126441835 133598920 136168130 151730202 156192855 163401756 167261640 177018569 178506120 200398380 202306936 204252195 208257140 233431080 249908568 252883670 272336260 303460404 312385710 326803512 354037138 379325505 400796760 408504390 416514280 505767340 531055707 544672520 606920808 624771420 708074276 758651010 817008780 885092845 1011534680 1062111414 1249542840 1416148552 1517302020 1634017560 1770185690 2124222828 2655278535 3034604040 3540371380 4248445656 5310557070 7080742760 10621114140 21242228280
• Sum of all divisors σ(n): 85558394880
• Sum of proper divisors (its aliquot sum) s(n): 64316166600
• 21242228280 is an abundant number, because the sum of its proper divisors (64316166600) is greater than itself. Its abundance is 43073938320

Bases of 21242228280

• Binary: 10011110010001000101010111000111000₂
• Hexadecimal: 0x4F222AE38
• Base-36: 9RB2O8O

Squares and roots of 21242228280

• 21242228280 squared (21242228280²) is 451232262299631758400
• 21242228280 cubed (21242228280³) is 9585178723069615571870607552000
• The square root of 21242228280 is 145747.1381537215
• The cube root of 21242228280 is 2769.4914191815

Scales and comparisons

• 21,242,228,280 seconds is equal to 675 years, 22 weeks, 5 days, 2 hours, 58 minutes.
• To count from 1 to 21,242,228,280 would take you about one thousand, three hundred fifty 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 21242228280 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242228280

• 21242228280 backwards is 08282224212
• The number of decimal digits it has is: 11
• The sum of 21242228280's digits is 33
• More coming soon!