72661121564672

Names of 72661121564672

• Cardinal: 72661121564672 can be written as Seventy-two trillion, six hundred sixty-one billion, one hundred twenty-one million, five hundred sixty-four thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 7.2661121564672 × 10¹³

Factors of 72661121564672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 209

Divisors of 72661121564672

• Number of divisors d(n): 306
• Complete list of divisors:
  1 2 4 8 16 23 32 46 53 64 92 106 128 131 184 212 256 262 368 424 512 524 736 848 1024 1048 1219 1472 1696 2048 2096 2438 2809 2944 3013 3392 4096 4192 4876 5618 5888 6026 6784 6943 8192 8384 9752 11236 11776 12052 13568 13886 16384 16768 17161 19504 22472 23552 24104 27136 27772 32768 33536 34322 39008 44944 47104 48208 54272 55544 64607 65536 67072 68644 78016 89888 94208 96416 108544 111088 129214 134144 137288 156032 159689 179776 188416 192832 217088 222176 258428 268288 274576 312064 319378 359552 367979 376832 385664 394703 434176 444352 516856 536576 549152 624128 638756 719104 735958 753664 771328 789406 868352 888704 909533 1033712 1073152 1098304 1248256 1277512 1438208 1471916 1507328 1542656 1578812 1736704 1777408 1819066 2067424 2146304 2196608 2496512 2555024 2876416 2943832 3085312 3157624 3473408 3554816 3638132 4134848 4292608 4393216 4993024 5110048 5752832 5887664 6170624 6315248 7109632 7276264 8269696 8463517 8585216 8786432 9986048 10220096 11505664 11775328 12341248 12630496 14219264 14552528 16539392 16927034 17572864 19972096 20440192 20919259 23011328 23550656 24682496 25260992 28438528 29105056 33078784 33854068 35145728 39944192 40880384 41838518 46022656 47101312 48205249 49364992 50521984 56877056 58210112 66157568 67708136 70291456 79888384 81760768 83677036 92045312 94202624 96410498 98729984 101043968 113754112 116420224 132315136 135416272 140582912 163521536 167354072 184090624 188405248 192820996 197459968 202087936 227508224 232840448 264630272 270832544 281165824 327043072 334708144 376810496 385641992 404175872 455016448 465680896 529260544 541665088 562331648 654086144 669416288 753620992 771283984 808351744 931361792 1058521088 1083330176 1108720727 1124663296 1308172288 1338832576 1507241984 1542567968 1616703488 1862723584 2117042176 2166660352 2217441454 2616344576 2677665152 3014483968 3085135936 3233406976 3725447168 4234084352 4333320704 4434882908 5232689152 5355330304 6028967936 6170271872 6466813952 7450894336 8666641408 8869765816 10465378304 10710660608 12057935872 12340543744 12933627904 14901788672 17333282816 17739531632 21421321216 24115871744 24681087488 25867255808 29803577344 34666565632 35479063264 42842642432 49362174976 59607154688 69333131264 70958126528 85685284864 98724349952 138666262528 141916253056 171370569728 197448699904 277332525056 283832506112 342741139456 394897399808 554665050112 567665012224 685482278912 789794799616 1135330024448 1370964557824 1579589599232 2270660048896 3159179198464 4541320097792 9082640195584 18165280391168 36330560782336 72661121564672
• Sum of all divisors σ(n): 155743361495736
• Sum of proper divisors (its aliquot sum) s(n): 83082239931064
• 72661121564672 is an abundant number, because the sum of its proper divisors (83082239931064) is greater than itself. Its abundance is 10421118366392

Bases of 72661121564672

• Binary: 10000100001010110111100010101110000000000000000₂
• Hexadecimal: 0x4215BC570000
• Base-36: PR823Q3NK

Squares and roots of 72661121564672

• 72661121564672 squared (72661121564672²) is 5279638587036042353478467584
• 72661121564672 cubed (72661121564672³) is 383624461190158985026039811838994911592448
• The square root of 72661121564672 is 8524149.3161882143
• The cube root of 72661121564672 is 41728.6209525321

Scales and comparisons

• 72,661,121,564,672 seconds is equal to 2,310,398 years, 47 weeks, 2 days, 7 hours, 4 minutes, 32 seconds.
• To count from 1 to 72,661,121,564,672 would take you about five million, seven hundred seventy-five thousand, nine hundred ninety-seven 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 72661121564672 cubic inches would be around 3477.4 feet tall.

Recreational maths with 72661121564672

• 72661121564672 backwards is 27646512116627
• The number of decimal digits it has is: 14
• The sum of 72661121564672's digits is 56
• More coming soon!