21191058309720

Names of 21191058309720

• Cardinal: 21191058309720 can be written as Twenty-one trillion, one hundred ninety-one billion, fifty-eight million, three hundred nine thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.119105830972 × 10¹³

Factors of 21191058309720

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9183

Divisors of 21191058309720

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 31 39 40 52 60 61 62 65 78 93 104 120 122 124 130 155 156 183 186 195 244 248 260 305 310 312 366 372 390 403 465 488 520 610 620 732 744 780 793 806 877 915 930 1209 1220 1240 1464 1560 1586 1612 1754 1830 1860 1891 2015 2379 2418 2440 2631 3172 3224 3508 3660 3720 3782 3965 4030 4385 4758 4836 5262 5673 6045 6344 7016 7320 7564 7930 8060 8191 8770 9455 9516 9672 10524 11346 11401 11895 12090 13155 15128 15860 16120 16382 17540 18910 19032 21048 22692 22802 23790 24180 24573 24583 26310 27187 28365 31720 32764 34203 35080 37820 40955 45384 45604 47580 48360 49146 49166 52620 53497 54374 56730 57005 65528 68406 73749 75640 81561 81910 91208 95160 98292 98332 105240 106483 106994 108748 113460 114010 122865 122915 135935 136812 147498 160491 163122 163820 171015 196584 196664 212966 213988 217496 226920 228020 245730 245830 253921 267485 271870 273624 294996 319449 320982 326244 327640 342030 353431 368745 407805 425932 427976 456040 491460 491660 499651 507842 532415 534970 543740 589992 638898 641964 652488 684060 695461 706862 737490 761763 802455 815610 851864 982920 983320 999302 1015684 1060293 1064830 1069940 1087480 1269605 1277796 1283928 1368120 1390922 1413724 1474980 1498953 1523526 1597245 1604910 1631220 1658407 1767155 1998604 2031368 2086383 2120586 2129660 2139880 2498255 2539210 2555592 2781844 2827448 2949960 2997906 3047052 3194490 3209820 3262440 3300973 3316814 3477305 3534310 3808815 3997208 4172766 4241172 4259320 4975221 4996510 5078420 5301465 5563688 5995812 6094104 6388980 6419640 6495463 6601946 6633628 6954610 7068620 7183507 7494765 7617630 8292035 8345532 8482344 9902919 9950442 9993020 10156840 10431915 10602930 11991624 12777960 12990926 13203892 13267256 13909220 14137240 14367014 14989530 15235260 15489181 16504865 16584070 16691064 19486389 19805838 19900884 19986040 20863830 21205860 21550521 21559291 24876105 25981852 26407784 27818440 28734028 29979060 30470520 30978362 32477315 33009730 33168140 35917535 38972778 39611676 39801768 41727660 42411720 43101042 43118582 46467543 49514595 49752210 51963704 57468056 59958120 61956724 64677873 64954630 66019460 66336280 71835070 77445905 77945556 79223352 83455320 86202084 86237164 92935086 93385591 97431945 99029190 99504420 107752605 107796455 123913448 129355746 129909260 132038920 143670140 154891810 155891112 172404168 172474328 185870172 186771182 194863890 198058380 199008840 201359353 215505210 215592910 222688717 232337715 258711492 259818520 280156773 287340280 309783620 323389365 371740344 373542364 389727780 396116760 402718706 431010420 431185820 438193927 445377434 464675430 466927955 517422984 560313546 604078059 619567240 646778730 668066151 747084728 779455560 805437412 862020840 862371640 876387854 890754868 929350860 933855910 1006796765 1113443585 1120627092 1208156118 1293557460 1314581781 1336132302 1400783865 1610874824 1752775708 1781509736 1858701720 1867711820 2013593530 2190969635 2226887170 2241254184 2416312236 2587114920 2629163562 2672264604 2801567730 2894953321 3020390295 3340330755 3505551416 3735423640 4027187060 4381939270 4453774340 4832624472 5258327124 5344529208 5603135460 5696521051 5789906642 6040780590 6572908905 6680661510 8054374120 8684859963 8763878540 8907548680 10516654248 11206270920 11393042102 11579813284 12081561180 13145817810 13361323020 13584011737 14474766605 17089563153 17369719926 17527757080 22786084204 23159626568 24163122360 26291635620 26722646040 27168023474 28482605255 28949533210 34179126306 34739439852 40752035211 43424299815 45572168408 52583271240 54336046948 56965210510 57899066420 67920058685 68358252612 69478879704 81504070422 85447815765 86848599630 108672093896 113930421020 115798132840 135840117370 136716505224 163008140844 170895631530 173697199260 176592152581 203760176055 227860842040 271680234740 326016281688 341791263060 347394398520 353184305162 407520352110 529776457743 543360469480 683582526120 706368610324 815040704220 882960762905 1059552915486 1412737220648 1630081408440 1765921525810 2119105830972 2648882288715 3531843051620 4238211661944 5297764577430 7063686103240 10595529154860 21191058309720
• Sum of all divisors σ(n): 71921156751360
• Sum of proper divisors (its aliquot sum) s(n): 50730098441640
• 21191058309720 is an abundant number, because the sum of its proper divisors (50730098441640) is greater than itself. Its abundance is 29539040131920

Bases of 21191058309720

• Binary: 100110100010111101101100000001100001001011000₂
• Hexadecimal: 0x1345ED80C258
• Base-36: 7IF1CZAZC

Squares and roots of 21191058309720

• 21191058309720 squared (21191058309720²) is 449060952285953063446478400
• 21191058309720 cubed (21191058309720³) is 9516076824510022094777386480790490048000
• The square root of 21191058309720 is 4603374.6653645301
• The cube root of 21191058309720 is 27672.6584071643

Scales and comparisons

• 21,191,058,309,720 seconds is equal to 673,810 years, 5 weeks, 3 days, 14 hours, 2 minutes.
• To count from 1 to 21,191,058,309,720 would take you about one million, six hundred eighty-four thousand, five hundred twenty-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 21191058309720 cubic inches would be around 2306.1 feet tall.

Recreational maths with 21191058309720

• 21191058309720 backwards is 02790385019112
• The number of decimal digits it has is: 14
• The sum of 21191058309720's digits is 48
• More coming soon!