21318612480

Names of 21318612480

• Cardinal: 21318612480 can be written as Twenty-one billion, three hundred eighteen million, six hundred twelve thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.131861248 × 10¹⁰

Factors of 21318612480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2570

Divisors of 21318612480

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 88 90 96 99 108 110 120 121 128 132 135 144 160 165 176 180 192 198 216 220 240 242 256 264 270 288 297 320 330 352 360 363 384 396 432 440 480 484 495 512 528 540 576 594 605 640 660 704 720 726 768 792 864 880 960 968 990 1056 1080 1089 1152 1188 1210 1280 1320 1408 1440 1452 1485 1536 1584 1728 1760 1815 1920 1936 1980 2112 2160 2178 2304 2376 2420 2549 2560 2640 2816 2880 2904 2970 3168 3267 3456 3520 3630 3840 3872 3960 4224 4320 4356 4608 4752 4840 5098 5280 5445 5632 5760 5808 5940 6336 6534 6912 7040 7260 7647 7680 7744 7920 8448 8640 8712 9504 9680 10196 10560 10890 11520 11616 11880 12672 12745 13068 13824 14080 14520 15294 15488 15840 16335 16896 17280 17424 19008 19360 20392 21120 21780 22941 23040 23232 23760 25344 25490 26136 28039 28160 29040 30588 30976 31680 32670 34560 34848 38016 38235 38720 40784 42240 43560 45882 46464 47520 50688 50980 52272 56078 58080 61176 61952 63360 65340 68823 69120 69696 76032 76470 77440 81568 84117 84480 87120 91764 92928 95040 101960 104544 112156 114705 116160 122352 126720 130680 137646 139392 140195 152064 152940 154880 163136 168234 174240 183528 185856 190080 203920 209088 224312 229410 232320 244704 252351 253440 261360 275292 278784 280390 305880 308429 309760 326272 336468 344115 348480 367056 380160 407840 418176 420585 448624 458820 464640 489408 504702 522720 550584 557568 560780 611760 616858 652544 672936 688230 696960 734112 757053 760320 815680 836352 841170 897248 917640 925287 929280 978816 1009404 1045440 1101168 1121560 1223520 1233716 1261755 1305088 1345872 1376460 1393920 1468224 1514106 1542145 1631360 1672704 1682340 1794496 1835280 1850574 1957632 2018808 2090880 2202336 2243120 2447040 2467432 2523510 2691744 2752920 2775861 2787840 2936448 3028212 3084290 3262720 3364680 3588992 3670560 3701148 3785265 3915264 4037616 4181760 4404672 4486240 4626435 4894080 4934864 5047020 5383488 5505840 5551722 5872896 6056424 6168580 6525440 6729360 7177984 7341120 7402296 7570530 8075232 8327583 8363520 8809344 8972480 9252870 9788160 9869728 10094040 10766976 11011680 11103444 11745792 12112848 12337160 13458720 13879305 14355968 14682240 14804592 15141060 16150464 16655166 17618688 17944960 18505740 19576320 19739456 20188080 21533952 22023360 22206888 24225696 24674320 26917440 27758610 29364480 29609184 30282120 32300928 33310332 35237376 35889920 37011480 39478912 40376160 41637915 43067904 44046720 44413776 48451392 49348640 53834880 55517220 58728960 59218368 60564240 64601856 66620664 71779840 74022960 78957824 80752320 83275830 88093440 88827552 96902784 98697280 107669760 111034440 118436736 121128480 129203712 133241328 148045920 157915648 161504640 166551660 176186880 177655104 193805568 197394560 215339520 222068880 236873472 242256960 266482656 296091840 323009280 333103320 355310208 387611136 394789120 444137760 473746944 484513920 532965312 592183680 646018560 666206640 710620416 789578240 888275520 969027840 1065930624 1184367360 1332413280 1421240832 1776551040 1938055680 2131861248 2368734720 2664826560 3553102080 4263722496 5329653120 7106204160 10659306240 21318612480
• Sum of all divisors σ(n): 83268108000
• Sum of proper divisors (its aliquot sum) s(n): 61949495520
• 21318612480 is an abundant number, because the sum of its proper divisors (61949495520) is greater than itself. Its abundance is 40630883040

Bases of 21318612480

• Binary: 10011110110101100000011011000000000₂
• Hexadecimal: 0x4F6B03600
• Base-36: 9SKJUO0

Squares and roots of 21318612480

• 21318612480 squared (21318612480²) is 454483238072411750400
• 21318612480 cubed (21318612480³) is 9688952031121328285776084992000
• The square root of 21318612480 is 146008.9465752013
• The cube root of 21318612480 is 2772.8070212625

Scales and comparisons

• 21,318,612,480 seconds is equal to 677 years, 45 weeks, 4 hours, 48 minutes.
• To count from 1 to 21,318,612,480 would take you about one thousand, three hundred fifty-five 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 21318612480 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318612480

• 21318612480 backwards is 08421681312
• 21318612480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21318612480's digits is 36
• More coming soon!