64421904960

Names of 64421904960

• Cardinal: 64421904960 can be written as Sixty-four billion, four hundred twenty-one million, nine hundred four thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 6.442190496 × 10¹⁰

Factors of 64421904960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 39468

Divisors of 64421904960

• Number of divisors d(n): 392
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 70 72 80 81 84 90 96 105 108 112 120 126 135 140 144 160 162 168 180 189 192 210 216 224 240 243 252 270 280 288 315 320 324 336 360 378 405 420 432 448 480 486 504 540 560 567 576 630 648 672 720 729 756 810 840 864 945 960 972 1008 1080 1120 1134 1215 1260 1296 1344 1440 1458 1512 1620 1680 1701 1728 1890 1944 2016 2160 2240 2268 2430 2520 2592 2835 2880 2916 3024 3240 3360 3402 3645 3780 3888 4032 4320 4536 4860 5040 5103 5184 5670 5832 6048 6480 6720 6804 7290 7560 7776 8505 8640 9072 9720 10080 10206 11340 11664 12096 12960 13608 14580 15120 15552 17010 18144 19440 20160 20412 22680 23328 25515 25920 27216 29160 30240 34020 36288 38880 39451 40824 45360 46656 51030 54432 58320 60480 68040 77760 78902 81648 90720 102060 108864 116640 118353 136080 157804 163296 181440 197255 204120 233280 236706 272160 276157 315608 326592 355059 394510 408240 473412 544320 552314 591765 631216 710118 789020 816480 828471 946824 1065177 1104628 1183530 1262432 1380785 1420236 1578040 1632960 1656942 1775295 1893648 2130354 2209256 2367060 2485413 2524864 2761570 2840472 3156080 3195531 3313884 3550590 3787296 4142355 4260708 4418512 4734120 4970826 5325885 5523140 5680944 6312160 6391062 6627768 7101180 7456239 7574592 8284710 8521416 8837024 9468240 9586593 9941652 10651770 11046280 11361888 12427065 12624320 12782124 13255536 14202360 14912478 15977655 16569420 17042832 17674048 18936480 19173186 19883304 21303540 22092560 22368717 22723776 24854130 25564248 26511072 28404720 28759779 29824956 31955310 33138840 34085664 37281195 37872960 38346372 39766608 42607080 44185120 44737434 47932965 49708260 51128496 53022144 56809440 57519558 59649912 63910620 66277680 67106151 68171328 74562390 76692744 79533216 85214160 88370240 89474868 95865930 99416520 102256992 111843585 113618880 115039116 119299824 127821240 132555360 134212302 143798895 149124780 153385488 159066432 170428320 178949736 191731860 198833040 201318453 204513984 223687170 230078232 238599648 255642480 265110720 268424604 287597790 298249560 306770976 335530755 340856640 357899472 383463720 397666080 402636906 447374340 460156464 477199296 511284960 536849208 575195580 596499120 613541952 671061510 715798944 766927440 795332160 805273812 894748680 920312928 1006592265 1022569920 1073698416 1150391160 1192998240 1342123020 1431597888 1533854880 1610547624 1789497360 1840625856 2013184530 2147396832 2300782320 2385996480 2684246040 3067709760 3221095248 3578994720 4026369060 4294793664 4601564640 5368492080 6442190496 7157989440 8052738120 9203129280 10736984160 12884380992 16105476240 21473968320 32210952480 64421904960
• Sum of all divisors σ(n): 262865835456
• Sum of proper divisors (its aliquot sum) s(n): 198443930496
• 64421904960 is an abundant number, because the sum of its proper divisors (198443930496) is greater than itself. Its abundance is 134022025536

Bases of 64421904960

• Binary: 111011111111110110000100001001000000₂
• Hexadecimal: 0xEFFD84240
• Base-36: TLF5000

Squares and roots of 64421904960

• 64421904960 squared (64421904960²) is 4150181838675272601600
• 64421904960 cubed (64421904960³) is 267362619977856463842367143936000
• The square root of 64421904960 is 253814.7059569245
• The cube root of 64421904960 is 4008.7704424467

Scales and comparisons

• 64,421,904,960 seconds is equal to 2,048 years, 21 weeks, 4 days, 21 hours, 36 minutes.
• To count from 1 to 64,421,904,960 would take you about four thousand and ninety-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 64421904960 cubic inches would be around 334.1 feet tall.

Recreational maths with 64421904960

• 64421904960 backwards is 06940912446
• 64421904960 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64421904960's digits is 45
• More coming soon!