21381217608960

Names of 21381217608960

• Cardinal: 21381217608960 can be written as Twenty-one trillion, three hundred eighty-one billion, two hundred seventeen million, six hundred eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.138121760896 × 10¹³

Factors of 21381217608960

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 105

Divisors of 21381217608960

• Number of divisors d(n): 1728
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 17 18 20 22 24 27 30 32 33 34 36 40 44 45 48 51 54 55 60 64 66 67 68 72 80 85 88 90 96 99 102 108 110 120 121 128 132 134 135 136 144 153 160 165 170 176 180 187 192 198 201 204 216 220 240 242 255 256 264 268 270 272 288 297 306 320 330 335 340 352 360 363 374 384 396 402 408 432 440 459 480 484 495 510 528 536 540 544 561 576 594 603 605 612 640 660 670 680 704 720 726 737 748 765 768 792 804 816 864 880 918 935 960 968 990 1005 1020 1056 1072 1080 1088 1089 1122 1139 1152 1188 1206 1210 1224 1280 1320 1340 1360 1408 1440 1452 1474 1485 1496 1530 1584 1608 1632 1683 1728 1760 1809 1815 1836 1870 1920 1936 1980 2010 2040 2057 2112 2144 2160 2176 2178 2211 2244 2278 2295 2304 2376 2412 2420 2448 2640 2680 2720 2805 2816 2880 2904 2948 2970 2992 3015 3060 3168 3216 3264 3267 3366 3417 3456 3520 3618 3630 3672 3685 3740 3840 3872 3960 4020 4080 4114 4224 4288 4320 4352 4356 4422 4488 4489 4556 4590 4752 4824 4840 4896 5049 5280 5360 5440 5445 5610 5695 5760 5808 5896 5940 5984 6030 6120 6171 6336 6432 6528 6534 6633 6732 6834 6912 7040 7236 7260 7344 7370 7480 7744 7920 8040 8107 8160 8228 8415 8448 8576 8640 8712 8844 8976 8978 9045 9112 9180 9504 9648 9680 9792 10098 10251 10285 10560 10720 10880 10890 11055 11220 11390 11520 11616 11792 11880 11968 12060 12240 12342 12529 12672 12864 13056 13068 13266 13464 13467 13668 14080 14472 14520 14688 14740 14960 15488 15840 16080 16214 16320 16335 16456 16830 17085 17152 17280 17424 17688 17952 17956 18090 18224 18360 18513 19008 19296 19360 19584 19899 20196 20502 20570 21120 21440 21760 21780 22110 22440 22445 22780 23232 23584 23760 23936 24120 24321 24480 24684 25058 25245 25344 25728 26136 26532 26928 26934 27336 28944 29040 29376 29480 29920 30753 30855 30976 31680 32160 32428 32640 32670 32912 33165 33660 34170 34560 34848 35376 35904 35912 36180 36448 36720 37026 37587 38016 38592 38720 39168 39798 40392 40401 40535 41004 41140 42240 42880 43560 44220 44880 44890 45560 46464 47168 47520 47872 48240 48642 48960 49368 49379 50116 50490 51255 51456 52272 53064 53856 53868 54672 55539 57888 58080 58752 58960 59840 61506 61710 62645 63360 64320 64856 65280 65340 65824 66330 67320 67335 68340 69696 70752 71808 71824 72360 72896 72963 73440 74052 75174 76032 76313 77184 77440 79596 80784 80802 81070 82008 82280 85760 87120 88440 89760 89780 91120 92565 92928 94336 95040 96480 97284 97920 98736 98758 99495 100232 100980 102510 104544 106128 107712 107736 109344 111078 112761 115776 116160 117504 117920 119680 121203 121605 123012 123420 125290 126720 128640 129712 130680 131648 132660 134640 134670 136680 137819 139392 141504 143616 143648 144720 145792 145926 146880 148104 148137 150348 152626 153765 154368 154880 159192 161568 161604 162140 164016 164560 174240 176880 179520 179560 182240 185130 187935 188672 190080 192960 194568 195840 197472 197516 198990 200464 201960 202005 205020 209088 212256 215424 215472 218688 218889 222156 225522 228939 231552 232320 235840 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10123682580 10394369280 10480989024 10637421696 10798594752 11044017360 11136050838 11433806208 11645543360 11780285184 11819357440 12148419096 12373389820 12704229120 13101236280 13296777120 13498243440 13974652032 14292257760 14398126336 14505575040 14725356480 14848067784 15185523870 15721483536 15956132544 16197892128 16704076257 17468315040 17670427776 17729036160 17997657920 18560084730 18771920640 19056343680 19633808640 19651854420 19797423712 19945165680 20247365160 20961978048 21274843392 21597189504 22088034720 22272101676 22867612416 23291086720 24296838192 24746779640 26202472560 26593554240 26996486880 27840127095 27949304064 28584515520 29011150080 29450712960 29696135568 30371047740 31442967072 31912265088 32395784256 33408152514 34936630080 35340855552 35458072320 35995315840 37120169460 38112687360 39303708840 39594847424 39890331360 40494730320 41923956096 43194379008 44176069440 44544203352 46582173440 48593676384 49493559280 52404945120 53187108480 53992973760 55680254190 57169031040 58901425920 59392271136 60742095480 62885934144 63824530176 64791568512 66816305028 69873260160 71990631680 74240338920 78607417680 79189694848 79780662720 80989460640 83520381285 83847912192 88352138880 89088406704 97187352768 98987118560 104809890240 106374216960 107985947520 111360508380 114338062080 118784542272 121484190960 125771868288 129583137024 133632610056 139746520320 148480677840 157214835360 158379389696 159561325440 161978921280 167040762570 176704277760 178176813408 194374705536 197974237120 209619780480 215971895040 222721016760 237569084544 242968381920 251543736576 267265220112 296961355680 314429670720 319122650880 323957842560 334081525140 356353626816 388749411072 395948474240 419239560960 445442033520 475138169088 485936763840 534530440224 593922711360 628859341440 647915685120 668163050280 712707253632 791896948480 890884067040 971873527680 1069060880448 1187845422720 1257718682880 1336326100560 1425414507264 1781768134080 1943747055360 2138121760896 2375690845440 2672652201120 3563536268160 4276243521792 5345304402240 7127072536320 10690608804480 21381217608960
• Sum of all divisors σ(n): 89642000851200
• Sum of proper divisors (its aliquot sum) s(n): 68260783242240
• 21381217608960 is an abundant number, because the sum of its proper divisors (68260783242240) is greater than itself. Its abundance is 46879565633280

Bases of 21381217608960

• Binary: 100110111001000110011111000010110010100000000₂
• Hexadecimal: 0x137233E16500
• Base-36: 7KUE8X1C0

Squares and roots of 21381217608960

• 21381217608960 squared (21381217608960²) is 457156466441701179472281600
• 21381217608960 cubed (21381217608960³) is 9774561890333232571791148626147803136000
• The square root of 21381217608960 is 4623982.8729094575
• The cube root of 21381217608960 is 27755.1861568423

Scales and comparisons

• 21,381,217,608,960 seconds is equal to 679,856 years, 30 weeks, 2 days, 9 hours, 36 minutes.
• To count from 1 to 21,381,217,608,960 would take you about one million, six hundred ninety-nine thousand, six hundred forty-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 21381217608960 cubic inches would be around 2312.9 feet tall.

Recreational maths with 21381217608960

• 21381217608960 backwards is 06980671218312
• 21381217608960 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21381217608960's digits is 54
• More coming soon!