21980438640

Names of 21980438640

• Cardinal: 21980438640 can be written as Twenty-one billion, nine hundred eighty million, four hundred thirty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.198043864 × 10¹⁰

Factors of 21980438640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 473

Divisors of 21980438640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 29 30 36 40 45 48 54 58 60 72 80 81 87 90 108 116 120 127 135 144 145 162 174 180 216 232 240 243 254 261 270 290 307 324 348 360 381 405 432 435 464 486 508 522 540 580 614 635 648 696 720 762 783 810 870 921 972 1016 1044 1080 1143 1160 1215 1228 1270 1296 1305 1392 1524 1535 1566 1620 1740 1842 1905 1944 2032 2088 2160 2286 2320 2349 2430 2456 2540 2610 2763 3048 3070 3132 3240 3429 3480 3683 3684 3810 3888 3915 4176 4572 4605 4698 4860 4912 5080 5220 5526 5715 6096 6140 6264 6480 6858 6960 7047 7366 7368 7620 7830 8289 8903 9144 9210 9396 9720 10160 10287 10440 11049 11052 11430 11745 12280 12528 13716 13815 14094 14732 14736 15240 15660 16578 17145 17806 18288 18415 18420 18792 19440 20574 20880 22098 22104 22860 23490 24560 24867 26709 27432 27630 28188 29464 30480 30861 31320 33147 33156 34290 35235 35612 36830 36840 37584 38989 41148 41445 44196 44208 44515 45720 46980 49734 51435 53418 54864 55245 55260 56376 58928 61722 62640 66294 66312 68580 70470 71224 73660 73680 74601 77978 80127 82296 82890 88392 89030 91440 93960 99441 99468 102870 106836 110490 110520 112752 116967 123444 124335 132588 132624 133545 137160 140940 142448 147320 149202 154305 155956 160254 164592 165735 165780 176784 178060 187920 194945 198882 198936 205740 213672 220980 221040 233934 240381 246888 248670 265176 267090 274320 281880 294640 298323 298404 308610 311912 320508 331470 331560 350901 356120 373005 389890 397764 397872 400635 411480 427344 441960 467868 480762 493776 497205 497340 530352 534180 563760 584835 596646 596808 617220 623824 641016 662940 663120 701802 712240 721143 746010 779780 795528 801270 822960 883920 894969 935736 961524 994410 994680 1052703 1068360 1130681 1169670 1193292 1193616 1201905 1234440 1282032 1325880 1403604 1442286 1491615 1492020 1559560 1591056 1602540 1754505 1789938 1871472 1923048 1988820 1989360 2105406 2136720 2163429 2261362 2339340 2386584 2403810 2468880 2651760 2807208 2884572 2983230 2984040 3119120 3158109 3205080 3392043 3509010 3579876 3605715 3846096 3977640 4210812 4326858 4474845 4522724 4678680 4773168 4807620 5263515 5614416 5653405 5769144 5966460 5968080 6316218 6410160 6784086 7018020 7159752 7211430 7955280 8421624 8653716 8949690 9045448 9357360 9474327 9615240 10176129 10527030 10817145 11306810 11538288 11932920 12632436 13568172 14036040 14319504 14422860 15790545 16843248 16960215 17307432 17899380 18090896 18948654 19230480 20352258 21054060 21634290 22613620 23865840 25264872 27136344 28072080 28845720 30528387 31581090 33920430 34614864 35798760 37897308 40704516 42108120 43268580 45227240 47371635 50529744 50880645 54272688 57691440 61056774 63162180 67840860 71597520 75794616 81409032 84216240 86537160 90454480 91585161 94743270 101761290 122113548 126324360 135681720 151589232 152641935 162818064 173074320 183170322 189486540 203522580 244227096 252648720 271363440 274755483 305283870 366340644 378973080 407045160 457925805 488454192 549510966 610567740 732681288 757946160 814090320 915851610 1099021932 1221135480 1373777415 1465362576 1831703220 2198043864 2442270960 2747554830 3663406440 4396087728 5495109660 7326812880 10990219320 21980438640
• Sum of all divisors σ(n): 80074874880
• Sum of proper divisors (its aliquot sum) s(n): 58094436240
• 21980438640 is an abundant number, because the sum of its proper divisors (58094436240) is greater than itself. Its abundance is 36113997600

Bases of 21980438640

• Binary: 10100011110001000101110000001110000₂
• Hexadecimal: 0x51E22E070
• Base-36: A3IL300

Squares and roots of 21980438640

• 21980438640 squared (21980438640²) is 483139682806805049600
• 21980438640 cubed (21980438640³) is 10619622152484041367174956544000
• The square root of 21980438640 is 148258.0137463067
• The cube root of 21980438640 is 2801.2086040881

Scales and comparisons

• 21,980,438,640 seconds is equal to 698 years, 47 weeks, 2 days, 5 hours, 24 minutes.
• To count from 1 to 21,980,438,640 would take you about one thousand, three hundred ninety-seven 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 21980438640 cubic inches would be around 233.4 feet tall.

Recreational maths with 21980438640

• 21980438640 backwards is 04683408912
• 21980438640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21980438640's digits is 45
• More coming soon!