21245910400

Names of 21245910400

• Cardinal: 21245910400 can be written as Twenty-one billion, two hundred forty-five million, nine hundred ten thousand, four hundred.

Scientific notation

• Scientific notation: 2.12459104 × 10¹⁰

Factors of 21245910400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1661

Divisors of 21245910400

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 25 26 29 32 40 44 50 52 55 58 64 65 80 88 100 104 110 116 128 130 143 145 160 176 200 208 220 232 260 275 286 290 319 320 325 352 377 400 416 440 464 520 550 572 580 638 640 650 704 715 725 754 800 832 880 928 1040 1100 1144 1160 1276 1300 1408 1430 1450 1508 1595 1600 1601 1664 1760 1856 1885 2080 2200 2288 2320 2552 2600 2860 2900 3016 3190 3200 3202 3520 3575 3712 3770 4147 4160 4400 4576 4640 5104 5200 5720 5800 6032 6380 6404 7040 7150 7540 7975 8005 8294 8320 8800 9152 9280 9425 10208 10400 11440 11600 12064 12760 12808 14300 15080 15950 16010 16588 17600 17611 18304 18560 18850 20416 20735 20800 20813 22880 23200 24128 25520 25616 28600 30160 31900 32020 33176 35200 35222 37700 40025 40832 41470 41600 41626 45760 46400 46429 48256 51040 51232 57200 60320 63800 64040 66352 70444 75400 80050 82940 83252 88055 91520 92800 92858 102080 102464 103675 104065 114400 120640 127600 128080 132704 140888 150800 160100 165880 166504 176110 185716 204160 204928 207350 208130 228800 228943 232145 241280 255200 256160 265408 281776 301600 320200 331760 333008 352220 371432 414700 416260 440275 457600 457886 464290 510400 510719 512320 520325 530816 563552 603200 603577 640400 663520 666016 704440 742864 829400 832520 880550 915772 928580 1020800 1021438 1024640 1040650 1127104 1144715 1160725 1206400 1207154 1280800 1327040 1332032 1408880 1485728 1658800 1665040 1761100 1831544 1857160 2042876 2081300 2254208 2289430 2321450 2414308 2553595 2561600 2654080 2664064 2817760 2971456 3017885 3317600 3330080 3522200 3663088 3714320 4085752 4162600 4578860 4642900 4828616 5107190 5123200 5635520 5723575 5942912 6035770 6635200 6639347 6660160 7044400 7326176 7428640 8171504 8325200 9157720 9285800 9657232 10214380 11271040 11447150 12071540 12767975 13270400 13278694 13320320 14088800 14652352 14857280 15089425 16343008 16650400 18315440 18571600 19314464 20428760 22894300 24143080 25535950 26557388 28177600 29304704 29714560 30178850 32686016 33196735 33300800 36630880 37143200 38628928 40857520 45788600 48286160 51071900 53114776 56355200 60357700 65372032 66393470 66601600 73261760 74286400 77257856 81715040 91577200 96572320 102143800 106229552 120715400 132786940 146523520 148572800 163430080 165983675 183154400 193144640 204287600 212459104 241430800 265573880 326860160 331967350 366308800 386289280 408575200 424918208 482861600 531147760 663934700 732617600 817150400 849836416 965723200 1062295520 1327869400 1634300800 1931446400 2124591040 2655738800 4249182080 5311477600 10622955200 21245910400
• Sum of all divisors σ(n): 63825602400
• Sum of proper divisors (its aliquot sum) s(n): 42579692000
• 21245910400 is an abundant number, because the sum of its proper divisors (42579692000) is greater than itself. Its abundance is 21333781600

Bases of 21245910400

• Binary: 10011110010010110101101110110000000₂
• Hexadecimal: 0x4F25ADD80
• Base-36: 9RD9LDS

Squares and roots of 21245910400

• 21245910400 squared (21245910400²) is 451388708724828160000
• 21245910400 cubed (21245910400³) is 9590164061139397342756864000000
• The square root of 21245910400 is 145759.7694839011
• The cube root of 21245910400 is 2769.6514308095

Scales and comparisons

• 21,245,910,400 seconds is equal to 675 years, 28 weeks, 5 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,245,910,400 would take you about one thousand, three hundred fifty-one 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 21245910400 cubic inches would be around 230.8 feet tall.

Recreational maths with 21245910400

• 21245910400 backwards is 00401954212
• The number of decimal digits it has is: 11
• The sum of 21245910400's digits is 28
• More coming soon!