21023018640

Names of 21023018640

• Cardinal: 21023018640 can be written as Twenty-one billion, twenty-three million, eighteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.102301864 × 10¹⁰

Factors of 21023018640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 102

Divisors of 21023018640

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 79 80 81 90 104 108 117 120 130 135 144 156 158 162 169 180 195 208 216 234 237 240 243 260 270 312 316 324 338 351 360 390 395 405 432 468 474 486 507 520 540 585 624 632 648 676 702 711 720 729 780 790 810 845 936 948 972 1014 1027 1040 1053 1080 1170 1185 1215 1264 1296 1352 1404 1422 1458 1521 1560 1580 1620 1690 1755 1872 1896 1944 2028 2054 2106 2133 2160 2187 2340 2370 2430 2535 2704 2808 2844 2916 3042 3081 3120 3159 3160 3240 3380 3510 3555 3645 3792 3888 4056 4108 4212 4266 4374 4563 4680 4740 4860 5070 5135 5265 5616 5688 5832 6084 6162 6318 6320 6399 6480 6561 6760 7020 7110 7290 7605 8112 8216 8424 8532 8748 9126 9243 9360 9477 9480 9720 10140 10270 10530 10665 10935 11376 11664 12168 12324 12636 12798 13122 13351 13520 13689 14040 14220 14580 15210 15405 15795 16432 16848 17064 17496 18252 18486 18954 18960 19197 19440 19683 20280 20540 21060 21330 21870 22815 24336 24648 25272 25596 26244 26702 27378 27729 28080 28431 28440 29160 30420 30810 31590 31995 32805 34128 34992 36504 36972 37908 38394 39366 40053 40560 41067 41080 42120 42660 43740 45630 46215 47385 49296 50544 51192 52488 53404 54756 55458 56862 56880 57591 58320 60840 61620 63180 63990 65610 66755 68445 73008 73944 75816 76788 78732 80106 82134 82160 83187 84240 85293 85320 87480 91260 92430 94770 95985 98415 102384 104976 106808 109512 110916 113724 115182 120159 121680 123201 123240 126360 127980 131220 133510 136890 138645 142155 147888 151632 153576 157464 160212 164268 166374 170586 170640 172773 174960 182520 184860 189540 191970 196830 200265 205335 213616 219024 221832 227448 230364 240318 246402 246480 249561 252720 255879 255960 262440 267020 273780 277290 284310 287955 307152 314928 320424 328536 332748 341172 345546 360477 365040 369603 369720 379080 383940 393660 400530 410670 415935 426465 443664 454896 460728 480636 492804 499122 511758 511920 518319 524880 534040 547560 554580 568620 575910 600795 616005 640848 657072 665496 682344 691092 720954 739206 739440 748683 758160 767880 787320 801060 821340 831870 852930 863865 921456 961272 985608 998244 1023516 1036638 1068080 1081431 1095120 1108809 1109160 1137240 1151820 1201590 1232010 1247805 1279395 1330992 1364688 1382184 1441908 1478412 1497366 1535760 1554957 1574640 1602120 1642680 1663740 1705860 1727730 1802385 1848015 1922544 1971216 1996488 2047032 2073276 2162862 2217618 2218320 2246049 2274480 2303640 2403180 2464020 2495610 2558790 2591595 2764368 2883816 2956824 2994732 3109914 3204240 3244293 3285360 3326427 3327480 3411720 3455460 3604770 3696030 3743415 3992976 4094064 4146552 4325724 4435236 4492098 4607280 4806360 4928040 4991220 5117580 5183190 5407155 5544045 5767632 5913648 5989464 6219828 6488586 6652854 6654960 6738147 6823440 6910920 7209540 7392060 7486830 7774785 8293104 8651448 8870472 8984196 9612720 9732879 9856080 9982440 10235160 10366380 10814310 11088090 11230245 11978928 12439656 12977172 13305708 13476294 13821840 14419080 14784120 14973660 15549570 16221465 16632135 17302896 17740944 17968392 19465758 19964880 20214441 20470320 20732760 21628620 22176180 22460490 24879312 25954344 26611416 26952588 28838160 29198637 29568240 29947320 31099140 32442930 33264270 33690735 35936784 38931516 40428882 41465520 43257240 44352360 44920980 48664395 51908688 53222832 53905176 58397274 59894640 62198280 64885860 66528540 67381470 77863032 80857764 86514480 87595911 88704720 89841960 97328790 101072205 107810352 116794548 124396560 129771720 133057080 134762940 145993185 155726064 161715528 175191822 179683920 194657580 202144410 233589096 259543440 262787733 266114160 269525880 291986370 323431056 350383644 389315160 404288820 437979555 467178192 525575466 539051760 583972740 700767288 778630320 808577640 875959110 1051150932 1167945480 1313938665 1401534576 1617155280 1751918220 2102301864 2335890960 2627877330 3503836440 4204603728 5255754660 7007672880 10511509320 21023018640
• Sum of all divisors σ(n): 80395032960
• Sum of proper divisors (its aliquot sum) s(n): 59372014320
• 21023018640 is an abundant number, because the sum of its proper divisors (59372014320) is greater than itself. Its abundance is 38348995680

Bases of 21023018640

• Binary: 10011100101000100011100111010010000₂
• Hexadecimal: 0x4E511CE90
• Base-36: 9NOK900

Squares and roots of 21023018640

• 21023018640 squared (21023018640²) is 441967312737787449600
• 21023018640 cubed (21023018640³) is 9291487053957214985298860544000
• The square root of 21023018640 is 144993.1675631649
• The cube root of 21023018640 is 2759.9318508693

Scales and comparisons

• 21,023,018,640 seconds is equal to 668 years, 24 weeks, 1 day, 23 hours, 24 minutes.
• To count from 1 to 21,023,018,640 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 21023018640 cubic inches would be around 230 feet tall.

Recreational maths with 21023018640

• 21023018640 backwards is 04681032012
• 21023018640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21023018640's digits is 27
• More coming soon!