21091178624040

Names of 21091178624040

• Cardinal: 21091178624040 can be written as Twenty-one trillion, ninety-one billion, one hundred seventy-eight million, six hundred twenty-four thousand and forty.

Scientific notation

• Scientific notation: 2.109117862404 × 10¹³

Factors of 21091178624040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 663394

Divisors of 21091178624040

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 17 18 20 21 24 28 30 34 35 36 40 42 45 51 56 60 63 68 70 72 84 85 90 102 105 119 120 126 136 140 153 168 170 180 204 210 238 252 255 280 306 315 340 357 360 408 420 476 504 510 595 612 630 680 714 743 765 840 952 1020 1071 1190 1224 1260 1428 1486 1530 1785 2040 2142 2229 2380 2520 2856 2972 3060 3570 3715 4284 4458 4760 5201 5355 5944 6120 6687 7140 7430 8568 8916 10402 10710 11145 12631 13374 14280 14860 15603 17832 20804 21420 22290 25262 26005 26748 29720 31206 33435 37893 41608 42840 44580 46809 50524 52010 53496 62412 63155 66870 75786 78015 88417 89160 93618 101048 104020 113679 124824 126310 133740 151572 156030 176834 187236 189465 208040 227358 234045 252620 265251 267480 303144 312060 353668 374472 378930 442085 454716 468090 505240 530502 568395 624120 662617 707336 757860 795753 884170 909432 936180 1061004 1136790 1325234 1326255 1515720 1591506 1768340 1872360 1987851 2122008 2273580 2650468 2652510 3183012 3313085 3536680 3975702 3978765 4547160 4638319 5300936 5305020 5963553 6366024 6626170 7951404 7957530 9276638 9939255 10610040 11264489 11927106 13252340 13914957 15902808 15915060 18553276 19878510 22528978 23191595 23854212 26504680 27829914 29817765 31830120 33793467 37106552 39757020 41744871 45057956 46383190 47708424 55659828 56322445 59635530 67586934 69574785 78851423 79514040 83489742 90115912 92766380 101380401 111319656 112644890 119271060 135173868 139149570 157702846 166979484 168967335 185532760 202760802 208724355 225289780 236554269 238542120 270347736 278299140 315405692 333958968 337934670 394257115 405521604 417448710 450579560 473108538 492324431 506902005 556598280 630811384 675869340 709662807 788514230 811043208 834897420 946217076 984648862 1013804010 1182771345 1351738680 1419325614 1476973293 1577028460 1669794840 1892434152 1969297724 2027608020 2365542690 2461622155 2838651228 2953946586 3154056920 3446271017 3548314035 3938595448 4055216040 4430919879 4731085380 4923244310 5677302456 5907893172 6892542034 7096628070 7384866465 8369515327 8861839758 9462170760 9846488620 10338813051 11815786344 13785084068 14193256140 14769732930 16739030654 17231355085 17723679516 19692977240 20677626102 22154599395 25108545981 27570168136 28386512280 29539465860 31016439153 33478061308 34462710170 35447359032 41355252204 41847576635 44309198790 50217091962 51694065255 58586607289 59078931720 62032878306 66956122616 68925420340 75325637943 82710504408 83695153270 88618397580 100434183924 103388130510 117173214578 124065756612 125542729905 137850840680 150651275886 155082195765 167390306540 175759821867 177236795160 200868367848 206776261020 234346429156 248131513224 251085459810 292933036445 301302551772 310164391530 334780613080 351519643734 376628189715 413552522040 468692858312 502170919620 527279465601 585866072890 602605103544 620328783060 703039287468 753256379430 878799109335 1004341839240 1054558931202 1171732145780 1240657566120 1406078574936 1506512758860 1757598218670 2109117862404 2343464291560 2636397328005 3013025517720 3515196437340 4218235724808 5272794656010 7030392874680 10545589312020 21091178624040
• Sum of all divisors σ(n): 83058583196160
• Sum of proper divisors (its aliquot sum) s(n): 61967404572120
• 21091178624040 is an abundant number, because the sum of its proper divisors (61967404572120) is greater than itself. Its abundance is 40876225948080

Bases of 21091178624040

• Binary: 100110010111010101100001101011011010000101000₂
• Hexadecimal: 0x132EAC35B428
• Base-36: 7H55J70A0

Squares and roots of 21091178624040

• 21091178624040 squared (21091178624040²) is 444837815751161827665921600
• 21091178624040 cubed (21091178624040³) is 9382153830735548355462303936286515264000
• The square root of 21091178624040 is 4592513.3232294493
• The cube root of 21091178624040 is 27629.1134646935

Scales and comparisons

• 21,091,178,624,040 seconds is equal to 670,634 years, 12 weeks, 3 days, 16 hours, 54 minutes.
• To count from 1 to 21,091,178,624,040 would take you about one million, six hundred seventy-six thousand, five hundred eighty-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 21091178624040 cubic inches would be around 2302.4 feet tall.

Recreational maths with 21091178624040

• 21091178624040 backwards is 04042687119012
• 21091178624040 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21091178624040's digits is 45
• More coming soon!