21020958720

Names of 21020958720

• Cardinal: 21020958720 can be written as Twenty-one billion, twenty million, nine hundred fifty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.102095872 × 10¹⁰

Factors of 21020958720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 586

Divisors of 21020958720

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 127 128 144 160 180 192 240 254 256 288 320 360 381 384 449 480 508 512 576 635 640 720 762 768 898 960 1016 1024 1143 1152 1270 1280 1347 1440 1524 1536 1796 1905 1920 2032 2048 2245 2286 2304 2540 2560 2694 2880 3048 3072 3592 3810 3840 4041 4064 4096 4490 4572 4608 5080 5120 5388 5715 5760 6096 6144 6735 7184 7620 7680 8082 8128 8192 8980 9144 9216 10160 10240 10776 11430 11520 12192 12288 13470 14368 15240 15360 16164 16256 17960 18288 18432 20205 20320 20480 21552 22860 23040 24384 24576 26940 28736 30480 30720 32328 32512 35920 36576 36864 40410 40640 40960 43104 45720 46080 48768 53880 57023 57472 60960 61440 64656 65024 71840 73152 73728 80820 81280 86208 91440 92160 97536 107760 114046 114944 121920 122880 129312 130048 143680 146304 161640 162560 171069 172416 182880 184320 195072 215520 228092 229888 243840 258624 260096 285115 287360 292608 323280 325120 342138 344832 365760 368640 390144 431040 456184 459776 487680 513207 517248 520192 570230 574720 585216 646560 650240 684276 689664 731520 780288 855345 862080 912368 919552 975360 1026414 1034496 1040384 1140460 1149440 1170432 1293120 1300480 1368552 1379328 1463040 1560576 1710690 1724160 1824736 1839104 1950720 2052828 2068992 2280920 2298880 2340864 2566035 2586240 2600960 2737104 2758656 2926080 3121152 3421380 3448320 3649472 3678208 3901440 4105656 4137984 4561840 4597760 4681728 5132070 5172480 5201920 5474208 5517312 5852160 6842760 6896640 7298944 7802880 8211312 8275968 9123680 9195520 9363456 10264140 10344960 10948416 11034624 11704320 13685520 13793280 14597888 15605760 16422624 16551936 18247360 18391040 20528280 20689920 21896832 23408640 27371040 27586560 29195776 32845248 33103872 36494720 41056560 41379840 43793664 46817280 54742080 55173120 58391552 65690496 72989440 82113120 82759680 87587328 109484160 116783104 131380992 145978880 164226240 165519360 175174656 218968320 233566208 262761984 291957760 328452480 350349312 437936640 467132416 525523968 583915520 656904960 700698624 875873280 1051047936 1167831040 1313809920 1401397248 1751746560 2102095872 2335662080 2627619840 3503493120 4204191744 5255239680 7006986240 10510479360 21020958720
• Sum of all divisors σ(n): 73605542400
• Sum of proper divisors (its aliquot sum) s(n): 52584583680
• 21020958720 is an abundant number, because the sum of its proper divisors (52584583680) is greater than itself. Its abundance is 31563624960

Bases of 21020958720

• Binary: 10011100100111100100110000000000000₂
• Hexadecimal: 0x4E4F26000
• Base-36: 9NNC3K0

Squares and roots of 21020958720

• 21020958720 squared (21020958720²) is 441880705507944038400
• 21020958720 cubed (21020958720³) is 9288756069646968263276494848000
• The square root of 21020958720 is 144986.0638820159
• The cube root of 21020958720 is 2759.8417048469

Scales and comparisons

• 21,020,958,720 seconds is equal to 668 years, 20 weeks, 6 days, 3 hours, 12 minutes.
• To count from 1 to 21,020,958,720 would take you about one thousand, three hundred thirty-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 21020958720 cubic inches would be around 230 feet tall.

Recreational maths with 21020958720

• 21020958720 backwards is 02785902012
• 21020958720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21020958720's digits is 36
• More coming soon!