18940813165723648

Names of 18940813165723648

• Cardinal: 18940813165723648 can be written as Eighteen quadrillion, nine hundred forty trillion, eight hundred thirteen billion, one hundred sixty-five million, seven hundred twenty-three thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8940813165723648 × 10¹⁶

Factors of 18940813165723648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 28
• Sum of prime factors: 224

Divisors of 18940813165723648

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 8 16 32 41 64 82 128 164 181 256 328 362 512 656 724 1024 1312 1448 1681 2048 2624 2896 3362 4096 5248 5792 6724 7421 8192 10496 11584 13448 14842 16384 20992 23168 26896 29684 32761 32768 41984 46336 53792 59368 65522 65536 68921 83968 92672 107584 118736 131044 131072 137842 167936 185344 215168 237472 262088 262144 275684 304261 335872 370688 430336 474944 524176 524288 551368 608522 671744 741376 860672 949888 1048352 1048576 1102736 1217044 1343201 1343488 1482752 1721344 1899776 2096704 2097152 2205472 2434088 2686402 2686976 2965504 3442688 3799552 4193408 4194304 4410944 4868176 5372804 5373952 5931008 6885376 7599104 8386816 8388608 8821888 9736352 10745608 10747904 11862016 12474701 13770752 15198208 16773632 17643776 19472704 21491216 21495808 23724032 24949402 27541504 30396416 33547264 35287552 38945408 42982432 42991616 47448064 49898804 55071241 55083008 60792832 67094528 70575104 77890816 85964864 85983232 94896128 99797608 110142482 110166016 121585664 134189056 141150208 155781632 171929728 171966464 189792256 199595216 220284964 220332032 243171328 268378112 282300416 311563264 343859456 343932928 379584512 399190432 440569928 440664064 486342656 536756224 564600832 623126528 687718912 759169024 798380864 881139856 881328128 972685312 1073512448 1129201664 1246253056 1375437824 1518338048 1596761728 1762279712 1762656256 1945370624 2147024896 2257920881 2258403328 2492506112 2750875648 3193523456 3524559424 3525312512 3890741248 4294049792 4515841762 4516806656 4985012224 5501751296 6387046912 7049118848 7050625024 7781482496 8588099584 9031683524 9033613312 9970024448 11003502592 12774093824 14098237696 14101250048 15562964992 17176199168 18063367048 18067226624 19940048896 22007005184 25548187648 28196475392 31125929984 34352398336 36126734096 36134453248 39880097792 44014010368 51096375296 56392950784 62251859968 68704796672 72253468192 72268906496 79760195584 88028020736 102192750592 112785901568 137409593344 144506936384 144537812992 159520391168 176056041472 204385501184 225571803136 274819186688 289013872768 289075625984 319040782336 352112082944 408771002368 451143606272 578027745536 578151251968 638081564672 704224165888 817542004736 902287212544 1156055491072 1276163129344 1408448331776 1635084009472 1804574425088 2312110982144 2552326258688 2816896663552 3270168018944 3609148850176 4624221964288 5633793327104 6540336037888 7218297700352 9248443928576 11267586654208 13080672075776 14436595400704 18496887857152 26161344151552 28873190801408 36993775714304 52322688303104 57746381602816 73987551428608 104645376606208 115492763205632 147975102857216 230985526411264 295950205714432 461971052822528 591900411428864 1183800822857728 2367601645715456 4735203291430912 9470406582861824 18940813165723648
• Sum of all divisors σ(n): 39044359077321780
• Sum of proper divisors (its aliquot sum) s(n): 20103545911598132
• 18940813165723648 is an abundant number, because the sum of its proper divisors (20103545911598132) is greater than itself. Its abundance is 1162732745874484

Bases of 18940813165723648

• Binary: 1000011010010101001000110111000100000000000000000000000₂
• Hexadecimal: 0x434A91B8800000
• Base-36: 56HYHG1KG74

Squares and roots of 18940813165723648

• 18940813165723648 squared (18940813165723648²) is 358754403378850280355975506427904
• 18940813165723648 cubed (18940813165723648³) is 6795100126779459779226700006246227169831699873792
• The square root of 18940813165723648 is 137625626.8495211905
• The cube root of 18940813165723648 is 266562.7990405459

Scales and comparisons

• 18,940,813,165,723,648 seconds is equal to 602,259,270 years, 46 weeks, 1 day, 6 hours, 47 minutes, 28 seconds.
• To count from 1 to 18,940,813,165,723,648 would take you about one billion, eight hundred six million, seven hundred seventy-seven thousand, eight hundred twelve 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 18940813165723648 cubic inches would be around 22213.6 feet tall.

Recreational maths with 18940813165723648

• 18940813165723648 backwards is 84632756131804981
• The number of decimal digits it has is: 17
• The sum of 18940813165723648's digits is 76
• More coming soon!