21549355380

Names of 21549355380

• Cardinal: 21549355380 can be written as Twenty-one billion, five hundred forty-nine million, three hundred fifty-five thousand, three hundred eighty.

Scientific notation

• Scientific notation: 2.154935538 × 10¹⁰

Factors of 21549355380

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 483

Divisors of 21549355380

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 28 29 30 34 35 36 42 45 51 58 60 63 68 70 84 85 87 90 102 105 113 116 119 126 140 145 153 170 174 180 203 204 210 226 238 252 255 261 290 306 307 315 339 340 348 357 406 420 435 452 476 493 510 522 565 580 595 609 612 614 630 678 714 765 791 812 870 921 986 1015 1017 1020 1044 1071 1130 1190 1218 1228 1260 1305 1356 1428 1479 1530 1535 1582 1695 1740 1785 1827 1842 1921 1972 2030 2034 2142 2149 2260 2373 2380 2436 2465 2610 2763 2958 3045 3060 3070 3164 3277 3390 3451 3570 3654 3684 3842 3955 4060 4068 4284 4298 4437 4605 4746 4930 5085 5219 5220 5355 5526 5763 5916 6090 6140 6447 6554 6780 6902 7119 7140 7308 7395 7684 7910 8596 8874 8903 9135 9210 9492 9605 9831 9860 10170 10353 10438 10710 10745 11052 11526 11865 12180 12894 13108 13447 13804 13815 14238 14790 15657 15820 16385 17255 17289 17748 17806 18270 18420 19210 19341 19662 20340 20706 20876 21420 21490 22185 22939 23052 23730 25788 26095 26709 26894 27630 28476 28815 29493 29580 31059 31314 32235 32770 34510 34578 34691 35595 35612 36533 36540 38420 38682 39324 40341 41412 42980 44370 44515 45878 46971 47460 49155 51765 52190 53418 53788 55260 55709 57630 58986 62118 62321 62628 64470 65540 67235 68817 69020 69156 69382 71190 73066 77364 78285 80127 80682 86445 88740 89030 91756 93942 96705 98310 103530 104073 104380 106836 109599 111418 114695 115260 117972 121023 124236 124642 128940 133545 134470 137634 138764 142380 146132 147465 151351 155295 156570 160254 161364 167127 172890 173455 178060 182665 186963 187884 193410 196620 201705 206451 207060 208146 219198 222836 229390 234855 242046 242837 249284 267090 268940 275268 278545 294930 302702 310590 311605 312219 313140 320508 328797 334254 344085 345780 346910 365330 373926 386820 389963 400635 403410 412902 416292 438396 454053 458780 469710 484092 485674 501381 520365 534180 547995 557090 560889 589747 589860 605115 605404 621180 623210 624438 657594 668508 688170 693820 728511 730660 747852 756755 779926 801270 806820 825804 835635 908106 934815 939420 971348 1002762 1006039 1032255 1040730 1059457 1095990 1114180 1121778 1169889 1179494 1210230 1214185 1246420 1248876 1315188 1362159 1376340 1457022 1513510 1559852 1561095 1602540 1643985 1671270 1769241 1816212 1869630 1949815 2005524 2012078 2064510 2081460 2118914 2185533 2191980 2243556 2270265 2339778 2358988 2420460 2428370 2506905 2724318 2804445 2914044 2948735 3018117 3027020 3122190 3178371 3287970 3342540 3509667 3538482 3642555 3739260 3899630 4024156 4128229 4129020 4237828 4371066 4540530 4679556 4856740 5013810 5030195 5297285 5307723 5448636 5608890 5849445 5897470 6036234 6244380 6356742 6575940 6810795 7019334 7042273 7076964 7285110 7799260 8256458 8742132 8846205 9054351 9081060 9535113 10027620 10060390 10594570 10615446 10927665 11217780 11698890 11794940 12072468 12384687 12713484 13621590 14038668 14084546 14570220 15090585 15891855 16512916 17102663 17548335 17692410 18108702 19070226 20120780 20641145 21126819 21189140 21230892 21855330 23397780 24769374 26538615 27243180 28169092 30181170 31783710 34205326 35096670 35211365 35384820 36217404 37154061 38140452 41282290 42253638 43710660 45271755 47675565 49538748 51307989 53077230 60362340 61923435 63380457 63567420 68410652 70193340 70422730 74308122 82564580 84507276 85513315 90543510 95351130 102615978 105634095 106154460 119718641 123846870 126760914 140845460 148616244 153923967 171026630 181087020 185770305 190702260 205231956 211268190 239437282 247693740 253521828 256539945 307847934 316902285 342053260 359155923 371540610 422536380 478874564 513079890 598593205 615695868 633804570 718311846 743081220 769619835 1026159780 1077467769 1197186410 1267609140 1436623692 1539239670 1795779615 2154935538 2394372820 3078479340 3591559230 4309871076 5387338845 7183118460 10774677690 21549355380
• Sum of all divisors σ(n): 82819376640
• Sum of proper divisors (its aliquot sum) s(n): 61270021260
• 21549355380 is an abundant number, because the sum of its proper divisors (61270021260) is greater than itself. Its abundance is 39720665880

Bases of 21549355380

• Binary: 10100000100011100010001000101110100₂
• Hexadecimal: 0x504711174
• Base-36: 9WDXH10

Squares and roots of 21549355380

• 21549355380 squared (21549355380²) is 464374717293534944400
• 21549355380 cubed (21549355380³) is 10006975812445416293324140872000
• The square root of 21549355380 is 146796.9869581797
• The cube root of 21549355380 is 2782.7750088423

Scales and comparisons

• 21,549,355,380 seconds is equal to 685 years, 10 weeks, 3 days, 20 hours, 3 minutes.
• To count from 1 to 21,549,355,380 would take you about one thousand, three hundred seventy 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 21549355380 cubic inches would be around 231.9 feet tall.

Recreational maths with 21549355380

• 21549355380 backwards is 08355394512
• 21549355380 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21549355380's digits is 45
• More coming soon!