18129721222165952

Names of 18129721222165952

• Cardinal: 18129721222165952 can be written as Eighteen quadrillion, one hundred twenty-nine trillion, seven hundred twenty-one billion, two hundred twenty-two million, one hundred sixty-five thousand, nine hundred fifty-two.

Scientific notation

• Scientific notation: 1.8129721222165952 × 10¹⁶

Factors of 18129721222165952

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 26438

Divisors of 18129721222165952

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 4 7 8 14 16 19 23 28 32 38 46 49 56 64 76 92 98 112 133 152 161 184 196 224 266 304 322 361 368 392 437 448 532 608 644 722 736 784 874 931 1064 1127 1216 1288 1444 1472 1568 1748 1862 2128 2254 2527 2576 2888 3059 3136 3496 3724 4256 4508 5054 5152 5776 6118 6992 7448 8303 8512 9016 10108 10304 11552 12236 13984 14896 16606 17689 18032 20216 21413 23104 24472 26387 27968 29792 33212 35378 36064 40432 42826 48944 52774 58121 59584 66424 70756 72128 80864 85652 97888 105548 116242 132848 141512 161728 171304 184709 195776 211096 232484 265696 283024 342608 369418 406847 422192 464968 501353 531392 566048 606901 685216 738836 813694 844384 929936 1002706 1132096 1213802 1292963 1370432 1477672 1627388 1688768 1859872 2005412 2427604 2585926 2955344 3254776 3509471 3719744 4010824 4248307 4855208 5171852 5910688 6509552 7018942 8021648 8496614 9525707 9710416 10343704 11531119 11821376 13019104 14037884 16043296 16993228 19051414 19420832 20687408 23062238 24566297 26038208 28075768 29738149 32086592 33986456 38102828 38841664 41374816 46124476 49132594 56151536 59476298 66679949 67972912 76205656 80717833 82749632 92248952 98265188 112303072 118952596 133359898 135945824 152411312 161435666 184497904 196530376 219091261 224606144 237905192 266719796 271891648 304822624 322871332 368995808 393060752 438182522 466759643 475810384 533439592 565024831 609645248 645742664 696273769 737991616 786121504 876365044 933519286 951620768 1066879184 1130049662 1291485328 1392547538 1533638827 1572243008 1752730088 1867038572 1903241536 2133758368 2260099324 2582970656 2785095076 3067277654 3505460176 3734077144 4267516736 4520198648 4873916383 5165941312 5570190152 6134555308 7010920352 7468154288 9040397296 9747832766 10735471789 11140380304 12269110616 13229201611 14021840704 14936308576 16014296687 18080794592 19495665532 21470943578 22280760608 24538221232 26458403222 29872617152 32028593374 34117414681 36161589184 38991331064 42941887156 44561521216 49076442464 52916806444 64057186748 68234829362 77982662128 85883774312 92604411277 98152884928 105833612888 112100076809 128114373496 136469658724 155965324256 171767548624 185208822554 211667225776 224200153618 251354830609 256228746992 272939317448 304271637053 311930648512 343535097248 370417645108 423334451552 448400307236 502709661218 512457493984 545878634896 608543274106 648230878939 687070194496 740835290216 784700537663 846668903104 896800614472 1005419322436 1024914987968 1091757269792 1217086548212 1296461757878 1481670580432 1569401075326 1759483814263 1793601228944 2010838644872 2129901459371 2183514539584 2434173096424 2592923515756 2963341160864 3138802150652 3518967628526 3587202457888 4021677289744 4259802918742 4868346192848 5185847031512 5781161104007 5926682321728 6277604301304 7037935257052 7174404915776 8043354579488 8519605837484 9736692385696 10371694063024 11562322208014 12316386699841 12555208602608 14075870514104 14909310215597 16086709158976 17039211674968 19473384771392 20743388126048 23124644416028 24632773399682 25110417205216 28151741028208 29818620431194 34078423349936 40468127728049 41486776252096 46249288832056 49265546799364 50220834410432 56303482056416 59637240862388 68156846699872 80936255456098 92498577664112 98531093598728 112606964112832 119274481724776 136313693399744 161872510912196 184997155328224 197062187197456 238548963449552 283276894096343 323745021824392 369994310656448 394124374394912 477097926899104 566553788192686 647490043648784 788248748789824 954195853798208 1133107576385372 1294980087297568 2266215152770744 2589960174595136 4532430305541488 9064860611082976 18129721222165952
• Sum of all divisors σ(n): 46090485953166312
• Sum of proper divisors (its aliquot sum) s(n): 27960764731000360
• 18129721222165952 is an abundant number, because the sum of its proper divisors (27960764731000360) is greater than itself. Its abundance is 9831043508834408

Bases of 18129721222165952

• Binary: 1000000011010001110001010101001010100101111010111000000₂
• Hexadecimal: 0x4068E2A952F5C0
• Base-36: 4YIG6Y85ARK

Squares and roots of 18129721222165952

• 18129721222165952 squared (18129721222165952²) is 328686791593454500276494228066304
• 18129721222165952 cubed (18129721222165952³) is 5958999900997489480392679235564064422039547281408
• The square root of 18129721222165952 is 134646653.2156145051
• The cube root of 18129721222165952 is 262702.1993278389

Scales and comparisons

• 18,129,721,222,165,952 seconds is equal to 576,469,055 years, 49 weeks, 4 days, 15 hours, 52 minutes, 32 seconds.
• To count from 1 to 18,129,721,222,165,952 would take you about one billion, seven hundred twenty-nine million, four hundred seven thousand, one hundred sixty-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 18129721222165952 cubic inches would be around 21891.8 feet tall.

Recreational maths with 18129721222165952

• 18129721222165952 backwards is 25956122212792181
• The number of decimal digits it has is: 17
• The sum of 18129721222165952's digits is 65
• More coming soon!