21638741040

Names of 21638741040

• Cardinal: 21638741040 can be written as Twenty-one billion, six hundred thirty-eight million, seven hundred forty-one thousand and forty.

Scientific notation

• Scientific notation: 2.163874104 × 10¹⁰

Factors of 21638741040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 474

Divisors of 21638741040

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 28 30 34 35 36 40 42 45 48 49 51 56 60 63 68 70 72 80 84 85 90 98 102 105 109 112 119 120 126 136 140 144 147 153 168 170 180 196 204 210 218 238 240 245 252 255 272 280 294 306 315 327 331 336 340 357 360 392 408 420 436 441 476 490 504 510 545 560 588 595 612 630 654 662 680 714 720 735 763 765 784 816 833 840 872 882 952 980 981 993 1008 1020 1071 1090 1176 1190 1224 1260 1308 1324 1360 1428 1470 1526 1530 1635 1655 1666 1680 1744 1764 1785 1853 1904 1960 1962 1986 2040 2142 2180 2205 2289 2317 2352 2380 2448 2499 2520 2616 2648 2856 2940 2979 3052 3060 3270 3310 3332 3528 3570 3706 3815 3920 3924 3972 4080 4165 4284 4360 4410 4578 4634 4760 4905 4965 4998 5040 5232 5296 5341 5355 5559 5627 5712 5880 5958 6104 6120 6540 6620 6664 6867 6951 7056 7140 7412 7497 7630 7848 7944 8330 8568 8720 8820 9156 9265 9268 9520 9810 9930 9996 10682 10710 11118 11254 11445 11585 11760 11916 12208 12240 12495 12971 13080 13240 13328 13734 13902 14280 14824 14895 14994 15260 15696 15888 16023 16219 16660 16677 16881 17136 17640 18312 18530 18536 19620 19860 19992 20853 21364 21420 22236 22508 22890 23170 23832 24990 25942 26160 26480 26705 27468 27795 27804 28135 28560 29648 29790 29988 30520 32046 32438 33320 33354 33762 34335 34755 35280 36079 36624 37060 37072 37485 38913 39240 39389 39720 39984 41706 42728 42840 44472 45016 45780 46340 47664 48069 48657 49980 50643 51884 53410 54936 55590 55608 56270 59580 59976 61040 64092 64855 64876 66640 66708 67524 68670 69510 72158 74120 74970 77826 78480 78778 79440 80115 81095 83385 83412 84405 85456 85680 88944 90032 90797 91560 92680 96138 97314 99960 101286 103768 104265 106820 108237 109872 111180 111216 112540 116739 118167 119160 119952 128184 129710 129752 133416 135048 137340 139020 144316 145971 148240 149940 155652 157556 160230 162190 166770 166824 168810 180395 181594 183120 185360 192276 194565 194628 196945 199920 202572 207536 208530 213640 216474 222360 225080 233478 236334 238320 240345 243285 252553 253215 256368 259420 259504 266832 270096 272391 274680 275723 278040 288632 291942 299880 311304 315112 320460 324380 324711 333540 333648 337620 354501 360790 363188 384552 389130 389256 393890 405144 417060 427280 432948 444720 450160 453985 466956 472668 480690 486570 505106 506430 518840 541185 544782 549360 551446 556080 577264 583695 583884 590835 599760 613343 622608 630224 640920 648760 649422 667080 675240 709002 721580 726376 729855 757659 769104 778260 778512 787780 810288 817173 827169 834120 865896 907970 933912 945336 961380 973140 1010212 1012860 1037680 1082370 1089564 1102892 1167390 1167768 1181670 1226686 1262765 1281840 1297520 1298844 1334160 1350480 1361955 1378615 1418004 1443160 1452752 1459710 1515318 1556520 1575560 1623555 1634346 1654338 1668240 1731792 1767871 1772505 1815940 1840029 1867824 1890672 1922760 1946280 2020424 2025720 2164740 2179128 2205784 2272977 2334780 2335536 2363340 2453372 2481507 2525530 2597688 2723910 2757230 2836008 2886320 2919420 3030636 3066715 3113040 3151120 3247110 3268692 3308676 3535742 3545010 3631880 3680058 3788295 3845520 3892560 4040848 4051440 4085865 4135845 4293401 4329480 4358256 4411568 4545954 4669560 4726680 4906744 4963014 5051060 5195376 5303613 5447820 5514460 5520087 5672016 5838840 6061272 6133430 6494220 6537384 6617352 7071484 7090020 7263760 7360116 7576590 8171730 8271690 8586802 8658960 8839355 9091908 9200145 9339120 9453360 9813488 9926028 10102120 10607226 10895640 11028920 11040174 11364885 11677680 12122544 12266860 12407535 12880203 12988440 13074768 13234704 14142968 14180040 14720232 15153180 15910839 16343460 16543380 17173604 17678710 18183816 18400290 19852056 20204240 21214452 21467005 21791280 22057840 22080348 22729770 24533720 24815070 25760406 25976880 26518065 27600435 28285936 28360080 29440464 30053807 30306360 31821678 32686920 33086760 34347208 35357420 36367632 36800580 38640609 39704112 42428904 42934010 44160696 45459540 49067440 49630140 51520812 53036130 55200870 60107614 60612720 63643356 64401015 65373840 66173520 68694416 70714840 73601160 77281218 79554195 84857808 85868020 88321392 90161421 90919080 99260280 103041624 106072260 110401740 120215228 127286712 128802030 141429680 147202320 150269035 154562436 159108390 171736040 180322842 181838160 193203045 198520560 206083248 212144520 220803480 240430456 254573424 257604060 270484263 300538070 309124872 318216780 343472080 360645684 386406090 424289040 441606960 450807105 480860912 515208120 540968526 601076140 618249744 636433560 721291368 772812180 901614210 1030416240 1081937052 1202152280 1272867120 1352421315 1442582736 1545624360 1803228420 2163874104 2404304560 2704842630 3091248720 3606456840 4327748208 5409685260 7212913680 10819370520 21638741040
• Sum of all divisors σ(n): 90601299360
• Sum of proper divisors (its aliquot sum) s(n): 68962558320
• 21638741040 is an abundant number, because the sum of its proper divisors (68962558320) is greater than itself. Its abundance is 47323817280

Bases of 21638741040

• Binary: 10100001001110001001111110000110000₂
• Hexadecimal: 0x509C4FC30
• Base-36: 9XV5BG0

Squares and roots of 21638741040

• 21638741040 squared (21638741040²) is 468235113796180281600
• 21638741040 cubed (21638741040³) is 10132018373270476454696676864000
• The square root of 21638741040 is 147101.1252166345
• The cube root of 21638741040 is 2786.6173055315

Scales and comparisons

• 21,638,741,040 seconds is equal to 688 years, 2 weeks, 2 days, 9 hours, 24 minutes.
• To count from 1 to 21,638,741,040 would take you about one thousand, three hundred seventy-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 21638741040 cubic inches would be around 232.2 feet tall.

Recreational maths with 21638741040

• 21638741040 backwards is 04014783612
• 21638741040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21638741040's digits is 36
• More coming soon!