21447920340

Names of 21447920340

• Cardinal: 21447920340 can be written as Twenty-one billion, four hundred forty-seven million, nine hundred twenty thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.144792034 × 10¹⁰

Factors of 21447920340

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 57

Divisors of 21447920340

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 27 28 29 30 33 35 36 42 44 45 49 54 55 58 60 63 66 70 77 81 84 87 90 98 99 105 108 110 116 121 126 132 135 140 145 147 154 162 165 174 180 189 196 198 203 210 220 231 242 245 252 261 270 290 294 297 308 315 319 324 330 343 348 363 378 385 396 405 406 420 435 441 462 484 490 495 522 539 540 567 580 588 594 605 609 630 638 660 686 693 726 735 756 770 783 810 812 847 870 882 891 924 945 957 980 990 1015 1029 1044 1078 1089 1134 1155 1188 1210 1218 1260 1276 1305 1323 1331 1372 1386 1421 1452 1470 1485 1540 1566 1595 1617 1620 1694 1715 1740 1764 1782 1815 1827 1890 1914 1980 2030 2058 2079 2156 2178 2205 2233 2268 2310 2349 2420 2436 2541 2610 2646 2662 2695 2772 2835 2842 2871 2940 2970 3045 3087 3132 3190 3234 3267 3388 3430 3465 3509 3564 3630 3654 3773 3780 3828 3915 3969 3993 4060 4116 4158 4235 4263 4356 4410 4455 4466 4620 4698 4785 4851 5082 5145 5220 5292 5324 5390 5445 5481 5670 5684 5742 5929 5940 6090 6174 6237 6380 6468 6534 6615 6655 6699 6860 6930 7018 7105 7260 7308 7546 7623 7830 7938 7986 8085 8316 8470 8526 8613 8820 8910 8932 9135 9261 9317 9396 9570 9702 9801 9947 10164 10290 10395 10527 10780 10890 10962 11165 11319 11340 11484 11745 11858 11979 12180 12348 12474 12705 12789 13068 13230 13310 13398 13860 14036 14210 14355 14553 15092 15246 15435 15631 15660 15876 15972 16170 16335 16443 16940 17052 17226 17545 17787 17820 18270 18522 18634 18865 19140 19404 19602 19845 19894 19965 20097 20580 20790 21054 21315 21780 21924 22330 22638 22869 23490 23716 23958 24255 24563 24948 25410 25578 25839 26460 26620 26796 27405 27783 27951 28420 28710 29106 29645 29841 30492 30870 31185 31262 31581 32340 32670 32886 33495 33957 34452 35090 35574 35937 36540 37044 37268 37730 38115 38367 38599 39204 39690 39788 39930 40194 41503 41580 42108 42630 43065 43659 44660 45276 45738 46305 46585 46893 46980 47916 48510 49005 49126 49735 50820 51156 51678 52635 53361 54810 55566 55902 56595 57420 58212 59290 59682 59895 60291 61740 62370 62524 63162 63945 65219 65340 65772 66990 67914 68607 70180 71148 71874 72765 73689 75460 76230 76734 77198 78155 79380 79860 80388 82215 83006 83853 85260 86130 87318 88935 89523 91476 92610 93170 93786 94743 97020 98010 98252 99470 100485 101871 103356 105270 106722 107811 109417 109620 111132 111804 113190 114345 115101 115797 118580 119364 119790 120582 122815 124509 124740 126324 127890 129195 130438 133980 135828 137214 138915 139755 140679 143748 145530 147378 149205 152460 153468 154396 156310 157905 160083 164430 166012 167706 169785 171941 172260 174636 177870 179046 179685 180873 185220 186340 187572 189486 191835 192995 195657 196020 198940 200970 203742 207515 210540 213444 215622 218295 218834 221067 226380 228690 230202 231594 234465 239580 241164 245630 249018 251559 255780 258390 260876 266805 268569 270193 274428 277830 279510 281358 284229 291060 294756 298410 301455 305613 312620 315810 320166 326095 328251 328860 335412 339570 343035 343882 347391 355740 358092 359370 361746 368445 373527 378972 383670 385990 391314 401940 407484 415030 419265 422037 431244 436590 437668 442134 447615 456533 457380 460404 463188 468930 473715 480249 491260 498036 503118 509355 515823 516780 533610 537138 539055 540386 547085 555660 559020 562716 568458 575505 578985 586971 596820 602910 611226 622545 631620 640332 652190 656502 663201 679140 686070 687764 694782 703395 718740 723492 736890 747054 754677 767340 771980 782628 800415 805707 810579 830060 838530 844074 859705 873180 884268 895230 904365 913066 937860 947430 960498 978285 984753 1006236 1018710 1031646 1042173 1067220 1074276 1078110 1080772 1094170 1105335 1120581 1136916 1151010 1157970 1173942 1203587 1205820 1222452 1245090 1257795 1266111 1304380 1313004 1326402 1342845 1350965 1369599 1372140 1389564 1406790 1421145 1473780 1494108 1509354 1528065 1547469 1600830 1611414 1621158 1641255 1677060 1688148 1719410 1736955 1760913 1790460 1808730 1826132 1867635 1891351 1894860 1920996 1956570 1969506 1989603 2037420 2063292 2084346 2110185 2156220 2188340 2210670 2241162 2282665 2302020 2315940 2347884 2401245 2407174 2431737 2490180 2515590 2532222 2579115 2652804 2685690 2701930 2739198 2813580 2842290 2934855 2954259 3018708 3056130 3094938 3126519 3201660 3222828 3242316 3282510 3316005 3361743 3438820 3473910 3521826 3610761 3617460 3735270 3773385 3782702 3913140 3939012 3979206 4028535 4052895 4108797 4168692 4220370 4421340 4482324 4565330 4642407 4802490 4814348 4863474 4923765 5031180 5064444 5158230 5210865 5282739 5371380 5403860 5478396 5602905 5674053 5684580 5869710 5908518 6017935 6112260 6189876 6253038 6330555 6565020 6632010 6723486 6847995 6947820 7043652 7221522 7295211 7470540 7546770 7565404 7737345 7958412 8057070 8105790 8217594 8440740 8804565 8862777 9130660 9284814 9456755 9604980 9726948 9847530 9948015 10316460 10421730 10565478 10832283 11205810 11348106 11739420 11817036 12035870 12158685 12326391 12506076 12661110 13239457 13264020 13446972 13695990 13927221 14443044 14590422 14771295 15093540 15474690 15632595 16114140 16211580 16435188 16808715 17022159 17609130 17725554 18053805 18569628 18913510 19695060 19896030 20543985 20843460 21130956 21664566 21885633 22411620 22696212 23212035 24071740 24317370 24652782 25322220 26413695 26478914 27391980 27854442 28370265 29180844 29542590 30949380 31265190 32496849 33617430 34044318 35218260 35451108 36107610 36476055 36979173 37827020 39718371 39792060 41087970 43329132 43771266 44313885 46424070 48634740 49305564 51066477 52827390 52957828 54161415 55708884 56740530 59085180 61631955 62530380 64993698 66197285 67234860 68088636 69636105 72215220 72952110 73958346 79436742 82175940 85110795 87542532 88627770 92848140 97490547 102132954 105654780 108322830 109428165 113481060 119155113 123263910 129987396 132394570 139272210 145904220 147916692 153199431 158873484 162484245 170221590 177255540 184895865 194981094 198591855 204265908 216645660 218856330 238310226 246527820 255332385 264789140 278544420 306398862 324968490 340443180 357465339 369791730 389962188 397183710 437712660 476620452 487452735 510664770 595775565 612797724 649936980 714930678 739583460 765997155 794367420 974905470 1021329540 1072396017 1191551130 1429861356 1531994310 1787326695 1949810940 2144792034 2383102260 3063988620 3574653390 4289584068 5361980085 7149306780 10723960170 21447920340
• Sum of all divisors σ(n): 89280576000
• Sum of proper divisors (its aliquot sum) s(n): 67832655660
• 21447920340 is an abundant number, because the sum of its proper divisors (67832655660) is greater than itself. Its abundance is 46384735320

Bases of 21447920340

• Binary: 10011111110011001010100101011010100₂
• Hexadecimal: 0x4FE654AD4
• Base-36: 9UPJD90

Squares and roots of 21447920340

• 21447920340 squared (21447920340²) is 460013286910985715600
• 21447920340 cubed (21447920340³) is 9866328333008386299066695304000
• The square root of 21447920340 is 146451.0851444945
• The cube root of 21447920340 is 2778.4018703125

Scales and comparisons

• 21,447,920,340 seconds is equal to 681 years, 50 weeks, 5 days, 19 hours, 39 minutes.
• To count from 1 to 21,447,920,340 would take you about one thousand, three hundred sixty-three 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 21447920340 cubic inches would be around 231.5 feet tall.

Recreational maths with 21447920340

• 21447920340 backwards is 04302974412
• 21447920340 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21447920340's digits is 36
• More coming soon!