1621138696523840

Names of 1621138696523840

• Cardinal: 1621138696523840 can be written as One quadrillion, six hundred twenty-one trillion, one hundred thirty-eight billion, six hundred ninety-six million, five hundred twenty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.62113869652384 × 10¹⁵

Factors of 1621138696523840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 36758

Divisors of 1621138696523840

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 130 136 160 170 208 221 260 272 289 320 340 416 442 520 544 578 680 832 884 1040 1088 1105 1156 1360 1445 1768 2080 2210 2312 2720 2890 3536 3757 4160 4420 4624 5440 5780 7072 7514 8840 9248 11560 14144 15028 17680 18496 18785 23120 30056 35360 36721 37570 46240 60112 70720 73442 75140 92480 120224 146884 150280 183605 240448 293768 300560 367210 477373 587536 601120 624257 734420 954746 1175072 1202240 1248514 1468840 1909492 2350144 2386865 2497028 2937680 3121285 3818984 4773730 4994056 5875360 6242570 7637968 8115341 9547460 9988112 10612369 11750720 12485140 15275936 16230682 19094920 19976224 21224738 24970280 30551872 32461364 38189840 39952448 40576705 42449476 49940560 53061845 64922728 76379680 81153410 84898952 99881120 106123690 129845456 137960797 152759360 162306820 169797904 199762240 212247380 259690912 275921594 324613640 339595808 424494760 519381824 551843188 649227280 679191616 689803985 848989520 1103686376 1298454560 1348431841 1379607970 1697979040 2207372752 2596909120 2696863682 2759215940 3395958080 4414745504 5393727364 5518431880 6742159205 8829491008 10787454728 11036863760 13484318410 17529613933 21574909456 22073727520 22923341297 26968636820 35059227866 43149818912 44147455040 45846682594 53937273640 70118455732 86299637824 87648069665 91693365188 107874547280 114616706485 140236911464 175296139330 183386730376 215749094560 229233412970 280473822928 298003436861 350592278660 366773460752 389696802049 431498189120 458466825940 560947645856 596006873722 701184557320 733546921504 779393604098 916933651880 1121895291712 1192013747444 1402369114640 1467093843008 1490017184305 1558787208196 1833867303760 1948484010245 2384027494888 2804738229280 2980034368610 3117574416392 3667734607520 3896968020490 4768054989776 5066058426637 5609476458560 5960068737220 6235148832784 7335469215040 7793936040980 9536109979552 10132116853274 11920137474440 12470297665568 15587872081960 19072219959104 20264233706548 23840274948880 24940595331136 25330292133185 31175744163920 40528467413096 47680549897760 50660584266370 62351488327840 81056934826192 95361099795520 101321168532740 124702976655680 162113869652384 202642337065480 324227739304768 405284674130960 810569348261920 1621138696523840
• Sum of all divisors σ(n): 4416337027435788
• Sum of proper divisors (its aliquot sum) s(n): 2795198330911948
• 1621138696523840 is an abundant number, because the sum of its proper divisors (2795198330911948) is greater than itself. Its abundance is 1174059634388108

Bases of 1621138696523840

• Binary: 101110000100110101011000100001000110101000001000000₂
• Hexadecimal: 0x5C26AC4235040
• Base-36: FYN8U3CKZK

Squares and roots of 1621138696523840

• 1621138696523840 squared (1621138696523840²) is 2628090673367015005299688345600
• 1621138696523840 cubed (1621138696523840³) is 4260499488568663653440546994168570080559104000
• The square root of 1621138696523840 is 40263366.6814368617
• The cube root of 1621138696523840 is 117473.5403592015

Scales and comparisons

• 1,621,138,696,523,840 seconds is equal to 51,547,196 years, 1 week, 6 days, 21 hours, 57 minutes, 20 seconds.
• To count from 1 to 1,621,138,696,523,840 would take you about one hundred fifty-four million, six hundred forty-one thousand, five hundred eighty-eight 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 1621138696523840 cubic inches would be around 9789.5 feet tall.

Recreational maths with 1621138696523840

• 1621138696523840 backwards is 0483256968311261
• 1621138696523840 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1621138696523840's digits is 65
• More coming soon!