19491619840

Names of 19491619840

• Cardinal: 19491619840 can be written as Nineteen billion, four hundred ninety-one million, six hundred nineteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.949161984 × 10¹⁰

Factors of 19491619840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1034

Divisors of 19491619840

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 49 55 56 64 70 77 80 88 98 110 112 128 140 154 160 176 196 220 224 245 256 280 308 320 343 352 385 392 440 448 490 512 539 560 616 640 686 704 770 784 880 896 980 1009 1024 1078 1120 1232 1280 1372 1408 1540 1568 1715 1760 1792 1960 2018 2156 2240 2464 2560 2695 2744 2816 3080 3136 3430 3520 3584 3773 3920 4036 4312 4480 4928 5045 5120 5390 5488 5632 6160 6272 6860 7040 7063 7168 7546 7840 8072 8624 8960 9856 10090 10780 10976 11099 11264 12320 12544 13720 14080 14126 15092 15680 16144 17248 17920 18865 19712 20180 21560 21952 22198 24640 25088 27440 28160 28252 30184 31360 32288 34496 35315 35840 37730 39424 40360 43120 43904 44396 49280 49441 50176 54880 55495 56320 56504 60368 62720 64576 68992 70630 75460 77693 78848 80720 86240 87808 88792 98560 98882 109760 110990 113008 120736 125440 129152 137984 141260 150920 155386 161440 172480 175616 177584 197120 197764 219520 221980 226016 241472 247205 250880 258304 275968 282520 301840 310772 322880 344960 346087 351232 355168 388465 394240 395528 439040 443960 452032 482944 494410 516608 543851 551936 565040 603680 621544 645760 689920 692174 710336 776930 791056 878080 887920 904064 965888 988820 1033216 1087702 1130080 1207360 1243088 1291520 1379840 1384348 1420672 1553860 1582112 1730435 1756160 1775840 1808128 1931776 1977640 2175404 2260160 2414720 2486176 2583040 2719255 2759680 2768696 2841344 3107720 3164224 3460870 3551680 3616256 3806957 3863552 3955280 4350808 4520320 4829440 4972352 5166080 5438510 5537392 5682688 6215440 6328448 6921740 7103360 7232512 7613914 7910560 8701616 9040640 9658880 9944704 10877020 11074784 11365376 12430880 12656896 13843480 14206720 15227828 15821120 17403232 18081280 19034785 19317760 19889408 21754040 22149568 24861760 25313792 27686960 28413440 30455656 31642240 34806464 36162560 38069570 39778816 43508080 44299136 49723520 50627584 55373920 56826880 60911312 63284480 69612928 76139140 79557632 87016160 88598272 99447040 110747840 121822624 126568960 139225856 152278280 174032320 177196544 198894080 221495680 243645248 253137920 278451712 304556560 348064640 354393088 397788160 442991360 487290496 556903424 609113120 696129280 885982720 974580992 1218226240 1392258560 1771965440 1949161984 2436452480 2784517120 3898323968 4872904960 9745809920 19491619840
• Sum of all divisors σ(n): 59543136000
• Sum of proper divisors (its aliquot sum) s(n): 40051516160
• 19491619840 is an abundant number, because the sum of its proper divisors (40051516160) is greater than itself. Its abundance is 20559896320

Bases of 19491619840

• Binary: 10010001001110010101000010000000000₂
• Hexadecimal: 0x489CA8400
• Base-36: 8YCT24G

Squares and roots of 19491619840

• 19491619840 squared (19491619840²) is 379923243987081625600
• 19491619840 cubed (19491619840³) is 7405319440175760917244411904000
• The square root of 19491619840 is 139612.3914271225
• The cube root of 19491619840 is 2691.2206765831

Scales and comparisons

• 19,491,619,840 seconds is equal to 619 years, 40 weeks, 1 day, 10 hours, 50 minutes, 40 seconds.
• To count from 1 to 19,491,619,840 would take you about one thousand, two hundred thirty-nine 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 19491619840 cubic inches would be around 224.3 feet tall.

Recreational maths with 19491619840

• 19491619840 backwards is 04891619491
• The number of decimal digits it has is: 11
• The sum of 19491619840's digits is 52
• More coming soon!