21801129246720000

Names of 21801129246720000

• Cardinal: 21801129246720000 can be written as Twenty-one quadrillion, eight hundred one trillion, one hundred twenty-nine billion, two hundred forty-six million, seven hundred twenty thousand.

Scientific notation

• Scientific notation: 2.180112924672 × 10¹⁶

Factors of 21801129246720000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 29
• Sum of prime factors: 177

Divisors of 21801129246720000

• Number of divisors d(n): 4560
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 27 30 32 36 40 45 46 47 48 50 54 60 64 69 72 75 80 90 92 94 96 97 100 108 115 120 125 128 135 138 141 144 150 160 180 184 188 192 194 200 207 216 225 230 235 240 250 256 270 276 282 288 291 300 320 345 360 368 375 376 384 388 400 414 423 432 450 460 470 480 485 500 512 540 552 564 575 576 582 600 621 625 640 675 690 705 720 736 750 752 768 776 800 828 846 864 873 900 920 940 960 970 1000 1024 1035 1080 1081 1104 1125 1128 1150 1152 1164 1175 1200 1242 1250 1269 1280 1350 1380 1410 1440 1455 1472 1500 1504 1536 1552 1600 1656 1692 1725 1728 1746 1800 1840 1875 1880 1920 1940 2000 2048 2070 2115 2160 2162 2208 2209 2231 2250 2256 2300 2304 2328 2350 2400 2425 2484 2500 2538 2560 2619 2700 2760 2820 2875 2880 2910 2944 3000 3008 3072 3104 3105 3200 3243 3312 3375 3384 3450 3456 3492 3525 3600 3680 3750 3760 3840 3880 4000 4096 4140 4230 4320 4324 4365 4416 4418 4462 4500 4512 4559 4600 4608 4656 4700 4800 4850 4968 5000 5076 5120 5175 5238 5400 5405 5520 5625 5640 5750 5760 5820 5875 5888 6000 6016 6144 6208 6210 6345 6400 6486 6624 6627 6693 6750 6768 6900 6912 6984 7050 7200 7275 7360 7500 7520 7680 7760 8000 8192 8280 8460 8625 8640 8648 8730 8832 8836 8924 9000 9024 9118 9200 9216 9312 9400 9600 9700 9729 9936 10000 10152 10240 10350 10476 10575 10800 10810 11040 11045 11155 11250 11280 11500 11520 11640 11750 11776 12000 12032 12125 12288 12416 12420 12690 12800 12972 13095 13248 13254 13386 13500 13536 13677 13800 13824 13968 14100 14375 14400 14550 14720 15000 15040 15360 15520 15525 16000 16215 16384 16560 16875 16920 17250 17280 17296 17460 17625 17664 17672 17848 18000 18048 18236 18400 18432 18624 18800 19200 19400 19458 19872 19881 20000 20079 20304 20480 20700 20952 21150 21600 21620 21825 22080 22090 22310 22500 22560 22795 23000 23040 23280 23500 23552 24000 24064 24250 24576 24832 24840 25380 25600 25875 25944 26190 26496 26508 26772 27000 27025 27072 27354 27600 27648 27936 28200 28750 28800 29100 29187 29375 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2180112924672000 2422347694080000 2725141155840000 3633521541120000 4360225849344000 5450282311680000 7267043082240000 10900564623360000 21801129246720000
• Sum of all divisors σ(n): 86945876699848320
• Sum of proper divisors (its aliquot sum) s(n): 65144747453128320
• 21801129246720000 is an abundant number, because the sum of its proper divisors (65144747453128320) is greater than itself. Its abundance is 43343618206408320

Bases of 21801129246720000

• Binary: 1001101011101000000001011110100011101000000000000000000₂
• Hexadecimal: 0x4D7402F4740000
• Base-36: 5YNUSIH0QO0

Squares and roots of 21801129246720000

• 21801129246720000 squared (21801129246720000²) is 475289236432190154630758400000000
• 21801129246720000 cubed (21801129246720000³) is 10361842073033037726185066196734312448000000000000
• The square root of 21801129246720000 is 147652054.6647421361
• The cube root of 21801129246720000 is 279357.0675522651

Scales and comparisons

• 21,801,129,246,720,000 seconds is equal to 693,208,474 years, 37 weeks, 5 days.
• To count from 1 to 21,801,129,246,720,000 would take you about two billion, seventy-nine million, six hundred twenty-five thousand, four hundred twenty-four 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 21801129246720000 cubic inches would be around 23279.8 feet tall.

Recreational maths with 21801129246720000

• 21801129246720000 backwards is 00002764292110812
• 21801129246720000 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21801129246720000's digits is 45
• More coming soon!