21036667680

Names of 21036667680

• Cardinal: 21036667680 can be written as Twenty-one billion, thirty-six million, six hundred sixty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.103666768 × 10¹⁰

Factors of 21036667680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 456

Divisors of 21036667680

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 27 28 30 32 34 35 36 40 42 45 48 51 54 56 60 63 68 70 72 80 84 85 90 96 102 105 108 112 119 120 126 135 136 140 144 151 153 160 168 170 180 189 204 210 216 224 238 240 252 255 270 271 272 280 288 302 306 315 336 340 357 360 378 408 420 432 453 459 476 480 504 510 540 542 544 560 595 604 612 630 672 680 714 720 755 756 765 813 816 840 864 906 918 945 952 1008 1020 1057 1071 1080 1084 1120 1190 1208 1224 1260 1355 1359 1360 1428 1440 1510 1512 1530 1626 1632 1680 1785 1812 1836 1890 1897 1904 2016 2040 2114 2142 2160 2168 2265 2295 2380 2416 2439 2448 2520 2567 2710 2718 2720 2856 3020 3024 3060 3171 3213 3252 3360 3570 3624 3672 3780 3794 3808 4065 4077 4080 4228 4284 4320 4336 4530 4590 4607 4760 4832 4878 4896 5040 5134 5285 5355 5420 5436 5691 5712 6040 6048 6120 6342 6426 6504 6795 7140 7248 7317 7344 7560 7588 7701 8130 8154 8160 8456 8568 8672 9060 9180 9214 9485 9513 9520 9756 10080 10268 10570 10710 10840 10872 11382 11424 12080 12195 12240 12684 12835 12852 13008 13590 13821 14280 14496 14634 14688 15120 15176 15402 15855 16065 16260 16308 16912 17073 17136 17969 18120 18360 18428 18970 19026 19040 19512 20385 20536 21140 21420 21680 21744 22764 23035 23103 24160 24390 24480 25368 25670 25704 26016 27180 27642 28455 28539 28560 29268 30240 30352 30804 31710 32130 32249 32520 32616 33824 34146 34272 35938 36240 36585 36720 36856 37940 38052 38505 39024 40770 40921 41072 41463 42280 42840 43360 43488 45528 46070 46206 47565 48780 50736 51219 51340 51408 53907 54360 55284 56910 57078 57120 58536 60704 61608 63420 64260 64498 65040 65232 68292 69105 69309 71876 72480 73170 73440 73712 75880 76104 77010 78048 81540 81842 82144 82926 84560 85365 85680 89845 91056 92140 92412 95130 96747 97560 101472 102438 102680 102816 107814 108720 110568 113820 114156 115515 117072 122763 123216 124389 126840 128520 128996 130080 130464 136584 138210 138618 142695 143752 146340 147424 151760 152208 154020 161245 161721 163080 163684 165852 169120 170730 171360 179690 182112 184280 184824 190260 193494 195120 204605 204876 205360 207315 215628 217440 221136 227640 228312 231030 234144 245526 246432 248778 253680 256095 257040 257992 269535 273168 276420 277236 285390 286447 287504 290241 292680 303520 304416 308040 322490 323442 326160 327368 331704 341460 346545 359380 368289 368560 369648 380520 386988 390240 409210 409752 410720 414630 431256 442272 455280 456624 462060 483735 485163 491052 497556 507360 512190 514080 515984 539070 546336 552840 554472 570780 572894 575008 580482 585360 613815 616080 621945 644980 646884 652320 654736 663408 682920 693090 695657 718760 736578 737120 739296 761040 773976 808605 818420 819504 829260 859341 862512 870723 910560 913248 924120 967470 970326 982104 995112 1024380 1031968 1078140 1104867 1105680 1108944 1141560 1145788 1160964 1170720 1227630 1232160 1243890 1289960 1293768 1309472 1326816 1365840 1386180 1391314 1432235 1437520 1451205 1473156 1522080 1547952 1617210 1636840 1639008 1658520 1718682 1725024 1741446 1841445 1848240 1934940 1940652 1964208 1990224 2048760 2086971 2156280 2209734 2211360 2217888 2283120 2291576 2321928 2425815 2455260 2487780 2578023 2579920 2587536 2731680 2772360 2782628 2864470 2875040 2902410 2946312 3095904 3234420 3273680 3317040 3437364 3478285 3482892 3682890 3696480 3869880 3881304 3928416 3980448 4097520 4173942 4296705 4312560 4353615 4419468 4566240 4583152 4643856 4851630 4869599 4910520 4975560 5156046 5159840 5175072 5524335 5544720 5565256 5728940 5804820 5892624 6260913 6468840 6547360 6634080 6874728 6956570 6965784 7365780 7734069 7739760 7762608 8195040 8347884 8593410 8625120 8707230 8838936 9166304 9287712 9703260 9739198 9821040 9951120 10312092 10434855 11048670 11089440 11130512 11457880 11609640 11785248 12521826 12890115 12937680 13749456 13913140 13931568 14608797 14731560 15468138 15479520 15525216 16695768 17186820 17414460 17677872 18782739 19406520 19478396 19642080 19902240 20624184 20869710 22097340 22261024 22915760 23219280 24347995 25043652 25780230 25875360 27498912 27826280 27863136 29217594 29463120 30936276 31304565 33391536 34373640 34828920 35355744 37565478 38670345 38813040 38956792 41248368 41739420 43826391 44194680 45831520 46438560 48695990 50087304 51560460 55652560 58435188 58926240 61872552 62609130 66783072 68747280 69657840 73043985 75130956 77340690 77626080 77913584 82496736 83478840 87652782 88389360 93913695 97391980 100174608 103120920 111305120 116870376 123745104 125218260 131479173 137494560 139315680 146087970 150261912 154681380 155827168 166957680 175305564 176778720 187827390 194783960 200349216 206241840 219131955 233740752 247490208 250436520 262958346 292175940 300523824 309362760 333915360 350611128 375654780 389567920 412483680 438263910 467481504 500873040 525916692 584351880 601047648 618725520 657395865 701222256 751309560 779135840 876527820 1001746080 1051833384 1168703760 1237451040 1314791730 1402444512 1502619120 1753055640 2103666768 2337407520 2629583460 3005238240 3506111280 4207333536 5259166920 7012222560 10518333840 21036667680
• Sum of all divisors σ(n): 90017464320
• Sum of proper divisors (its aliquot sum) s(n): 68980796640
• 21036667680 is an abundant number, because the sum of its proper divisors (68980796640) is greater than itself. Its abundance is 47944128960

Bases of 21036667680

• Binary: 10011100101111000100001001100100000₂
• Hexadecimal: 0x4E5E21320
• Base-36: 9NWOSO0

Squares and roots of 21036667680

• 21036667680 squared (21036667680²) is 442541387078756582400
• 21036667680 cubed (21036667680³) is 9309596094622048211561336832000
• The square root of 21036667680 is 145040.2277990491
• The cube root of 21036667680 is 2760.5290101291

Scales and comparisons

• 21,036,667,680 seconds is equal to 668 years, 46 weeks, 5 days, 22 hours, 48 minutes.
• To count from 1 to 21,036,667,680 would take you about one thousand, three hundred thirty-seven 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 21036667680 cubic inches would be around 230 feet tall.

Recreational maths with 21036667680

• 21036667680 backwards is 08676663012
• 21036667680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21036667680's digits is 45
• More coming soon!