21479470740

Names of 21479470740

• Cardinal: 21479470740 can be written as Twenty-one billion, four hundred seventy-nine million, four hundred seventy thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.147947074 × 10¹⁰

Factors of 21479470740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5358

Divisors of 21479470740

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 13 14 15 18 19 20 21 26 28 30 35 36 38 39 42 45 52 57 60 63 65 70 76 78 84 90 91 95 105 114 117 126 130 133 140 156 169 171 180 182 190 195 210 228 234 247 252 260 266 273 285 315 338 342 364 380 390 399 420 455 468 494 507 532 546 570 585 630 665 676 684 741 780 798 819 845 855 910 988 1014 1092 1140 1170 1183 1197 1235 1260 1330 1365 1482 1521 1596 1638 1690 1710 1729 1820 1995 2028 2223 2340 2366 2394 2470 2535 2660 2730 2964 3042 3211 3276 3380 3420 3458 3549 3705 3990 4095 4446 4732 4788 4940 5070 5187 5309 5460 5915 5985 6084 6422 6916 7098 7410 7605 7980 8190 8645 8892 9633 10140 10374 10618 10647 11115 11830 11970 12844 14196 14820 15210 15561 15927 16055 16380 17290 17745 19266 20748 21236 21294 22230 22477 23660 23940 25935 26545 28899 30420 31122 31854 32110 34580 35490 37163 38532 42588 44460 44954 47781 48165 51870 53090 53235 57798 62244 63708 64220 67431 69017 70980 74326 77805 79635 89908 95562 96330 100871 103740 106180 106470 111489 112385 115596 134862 138034 144495 148652 155610 159270 185815 191124 192660 201742 202293 207051 212940 222978 224770 238905 269724 276068 288990 302613 311220 318540 334467 337155 345085 371630 403484 404586 414102 445956 449540 477810 483119 504355 557445 577980 605226 621153 668934 674310 690170 706097 743260 809172 828204 897221 907839 955620 966238 1008710 1011465 1035255 1114890 1210452 1242306 1311323 1337868 1348620 1380340 1412194 1449357 1513065 1672335 1794442 1815678 1932476 2017420 2022930 2070510 2118291 2229780 2415595 2484612 2622646 2691663 2824388 2898714 3026130 3105765 3344670 3530485 3588884 3631356 3933969 4045860 4141020 4236582 4348071 4486105 4539195 4831190 5245292 5383326 5797428 6052260 6211530 6280547 6354873 6556615 6689340 7060970 7246785 7867938 8074989 8473164 8696142 8972210 9078390 9179261 9662380 10591455 10766652 11801907 12423060 12561094 12709746 13113230 13458315 14121940 14493570 15735876 16149978 17047199 17392284 17944420 18156780 18358522 18841641 19669845 21182910 21740355 23603814 25122188 25419492 26226460 26916630 27537783 28987140 31402735 31774365 32299956 34094398 36717044 37683282 39339690 40374945 42365820 43480710 45896305 47207628 51141597 53833260 55075566 56524923 59009535 62805470 63548730 68188796 75366564 78679380 80749890 82613349 85235995 86961420 91792610 94208205 102283194 110151132 113049846 118019070 119330393 125610940 127097460 137688915 153424791 161499780 165226698 170471990 183585220 188416410 204566388 226099692 236038140 238660786 255707985 275377830 282624615 306849582 330453396 340943980 357991179 376832820 413066745 477321572 511415970 550755660 565249230 596651965 613699164 715982358 767123955 826133490 1022831940 1073973537 1130498460 1193303930 1431964716 1534247910 1652266980 1789955895 2147947074 2386607860 3068495820 3579911790 4295894148 5369867685 7159823580 10739735370 21479470740
• Sum of all divisors σ(n): 84890332800
• Sum of proper divisors (its aliquot sum) s(n): 63410862060
• 21479470740 is an abundant number, because the sum of its proper divisors (63410862060) is greater than itself. Its abundance is 41931391320

Bases of 21479470740

• Binary: 10100000000010001101011011010010100₂
• Hexadecimal: 0x50046B694
• Base-36: 9V8BLP0

Squares and roots of 21479470740

• 21479470740 squared (21479470740²) is 461367663270516147600
• 21479470740 cubed (21479470740³) is 9909933223601224297071721224000
• The square root of 21479470740 is 146558.7620717369
• The cube root of 21479470740 is 2779.7635678711

Scales and comparisons

• 21,479,470,740 seconds is equal to 682 years, 50 weeks, 6 days, 23 hours, 39 minutes.
• To count from 1 to 21,479,470,740 would take you about one thousand, three hundred sixty-five 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 21479470740 cubic inches would be around 231.6 feet tall.

Recreational maths with 21479470740

• 21479470740 backwards is 04707497412
• 21479470740 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21479470740's digits is 45
• More coming soon!