21494494560

Names of 21494494560

• Cardinal: 21494494560 can be written as Twenty-one billion, four hundred ninety-four million, four hundred ninety-four thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.149449456 × 10¹⁰

Factors of 21494494560

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 8290

Divisors of 21494494560

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 32 33 35 40 42 44 48 55 56 60 66 70 71 77 80 84 88 96 105 110 112 120 132 140 142 154 160 165 168 176 210 213 220 224 231 240 264 280 284 308 330 336 352 355 385 420 426 440 462 480 497 528 560 568 616 660 672 710 770 781 840 852 880 924 994 1056 1065 1120 1136 1155 1232 1320 1420 1491 1540 1562 1680 1704 1760 1848 1988 2130 2272 2310 2343 2464 2485 2640 2840 2982 3080 3124 3360 3408 3696 3905 3976 4260 4620 4686 4970 5280 5467 5680 5964 6160 6248 6816 7392 7455 7810 7952 8191 8520 9240 9372 9940 10934 11360 11715 11928 12320 12496 14910 15620 15904 16382 16401 17040 18480 18744 19880 21868 23430 23856 24573 24992 27335 29820 31240 32764 32802 34080 36960 37488 39760 40955 43736 46860 47712 49146 54670 57337 59640 62480 65528 65604 74976 79520 81910 82005 87472 90101 93720 98292 109340 114674 119280 122865 124960 131056 131208 163820 164010 172011 174944 180202 187440 196584 218680 229348 238560 245730 262112 262416 270303 286685 327640 328020 344022 360404 374880 393168 437360 450505 458696 491460 524832 540606 573370 581561 630707 655280 656040 688044 720808 786336 860055 874720 901010 917392 982920 1081212 1146740 1163122 1261414 1310560 1312080 1351515 1376088 1441616 1720110 1744683 1802020 1834784 1892121 1965840 2162424 2293480 2326244 2522828 2624160 2703030 2752176 2883232 2907805 3153535 3440220 3489366 3604040 3784242 3931680 4070927 4324848 4586960 4652488 5045656 5406060 5504352 5815610 6307070 6397171 6880440 6978732 7208080 7568484 8141854 8649696 8723415 9173920 9304976 9460605 10091312 10812120 11631220 12212781 12614140 12794342 13760880 13957464 14416160 15136968 16283708 17446830 18609952 18921210 19191513 20182624 20354635 21624240 23262440 24425562 25228280 25588684 27521760 27914928 30273936 31985855 32567416 34893660 37842420 38383026 40709270 43248480 44780197 46524880 48851124 50456560 51177368 55829856 60547872 61063905 63971710 65134832 69787320 75684840 76766052 81418540 89560394 93049760 95957565 97702248 100913120 102354736 122127810 127943420 130269664 134340591 139574640 151369680 153532104 162837080 179120788 191915130 195404496 204709472 223900985 244255620 255886840 268681182 279149280 302739360 307064208 325674160 358241576 383830260 390808992 447801970 488511240 511773680 537362364 614128416 651348320 671702955 716483152 767660520 895603940 977022480 1023547360 1074724728 1343405910 1432966304 1535321040 1791207880 1954044960 2149449456 2686811820 3070642080 3582415760 4298898912 5373623640 7164831520 10747247280 21494494560
• Sum of all divisors σ(n): 85614133248
• Sum of proper divisors (its aliquot sum) s(n): 64119638688
• 21494494560 is an abundant number, because the sum of its proper divisors (64119638688) is greater than itself. Its abundance is 42625144128

Bases of 21494494560

• Binary: 10100000001001010111111010101100000₂
• Hexadecimal: 0x5012BF560
• Base-36: 9VH9M5C

Squares and roots of 21494494560

• 21494494560 squared (21494494560²) is 462013296389869593600
• 21494494560 cubed (21494494560³) is 9930742285899719618744610816000
• The square root of 21494494560 is 146610.0083896049
• The cube root of 21494494560 is 2780.4115188815

Scales and comparisons

• 21,494,494,560 seconds is equal to 683 years, 23 weeks, 5 days, 20 hours, 56 minutes.
• To count from 1 to 21,494,494,560 would take you about one thousand, three hundred sixty-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 21494494560 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494494560

• 21494494560 backwards is 06549449412
• 21494494560 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21494494560's digits is 48
• More coming soon!