18008480393267472381

Names of 18008480393267472381

• Cardinal: 18008480393267472381 can be written as Eighteen quintillion, eight quadrillion, four hundred eighty trillion, three hundred ninety-three billion, two hundred sixty-seven million, four hundred seventy-two thousand, three hundred eighty-one.

Scientific notation

• Scientific notation: 1.8008480393267472381 × 10¹⁹

Factors of 18008480393267472381

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 305176804

Divisors of 18008480393267472381

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 7 13 21 31 39 61 91 93 151 183 217 273 403 427 453 651 757 793 1057 1209 1281 1891 1963 2271 2379 2821 3171 4681 5299 5551 5673 5889 8463 9211 9841 13237 13741 14043 15897 16653 23467 24583 27633 29523 32767 39711 41223 46177 60853 64477 68887 70401 73749 98301 114307 119743 138531 164269 172081 182559 193431 206661 285541 305071 323239 342921 359229 425971 492807 516243 600301 800149 838201 856623 915213 969717 1277913 1431487 1485991 1800903 1998787 2135497 2400447 2514603 3543517 3712033 4202107 4294461 4457973 5996361 6406491 6972727 10020409 10401937 10630551 11136099 12606321 18609331 20918181 24804619 25984231 30061227 31205811 46065721 48809089 55827993 74413857 77952693 90645451 130265317 138197163 146427267 216154537 271936353 305175781 322460047 390795951 634518157 648463611 915527343 967380141 1513081759 1903554471 2136230467 2810008981 3967285153 4539245277 6408691401 8430026943 9460449211 11901855459 18615722641 19670062867 27770996071 28381347633 46081542931 55847167923 59010188601 66223144477 83312988213 122985839743 130310058487 138244628793 198669433431 231018066217 242004394333 322570800517 368957519229 390930175461 577087401871 599060058103 693054198651 726013182999 860900878201 967712401551 1428527830861 1617126463519 1694030760331 1731262205613 1797180174309 2582702634603 2810974118791 3003234860821 4039611813097 4193420406721 4285583492583 4851379390557 5082092280993 7161560052727 7502136224323 8432922356373 9009704582463 9999694816027 12118835439291 12580261220163 14092102039237 18570861801193 19676818831537 21022644025747 21484680158181 22506408672969 29999084448081 34883727998767 36542663544283 42276306117711 50130920369089 52514953570261 55712585403579 59030456494611 63067932077241 87140197682521 93100280685451 98644714274659 104651183996301 109627990632849 129996032608351 150392761107267 157544860710783 183197326510081 244186095991369 255798644809981 261420593047563 279300842056353 295934142823977 389988097825053 436855163216347 453488463983971 549591979530243 609981383777647 651701964798157 732558287974107 767395934429943 1081395567961777 1132822569872773 1282381285570567 1310565489649041 1360465391951913 1829944151332941 1955105894394471 2127907407924787 3057986142514429 3174419247887797 3244186703885331 3398467709618319 3847143856711701 5679117121812511 6383722223774361 7569768975732439 7929757989109411 9173958427543287 9523257743663391 14058142383503101 14895351855473509 17037351365437533 22709306927197317 23789273967328233 27662796303022231 39753819852687577 42174427150509303 44686055566420527 65965129645668397 82988388909066693 98406996684521707 119261459558062731 193639574121155617 197895388937005191 295220990053565121 461755907519678779 580918722363466851 857546685393689161 1385267722559036337 2572640056181067483 6002826797755824127 18008480393267472381
• Sum of all divisors σ(n): 31252340076805750784
• Sum of proper divisors (its aliquot sum) s(n): 13243859683538278403
• 18008480393267472381 is a deficient number, because the sum of its proper divisors (13243859683538278403) is less than itself. Its deficiency is 4764620709729193978

Bases of 18008480393267472381

• Binary: 1111100111101010111110011000000100110001010010110110011111111101₂
• Hexadecimal: 0xF9EAF981314B67FD
• Base-36: 3STIPIQUEH7UL

Squares and roots of 18008480393267472381

• 18008480393267472381 squared (18008480393267472381²) is 324305366074698976706886592940597809161
• 18008480393267472381 cubed (18008480393267472381³) is 5840246826387646623838207276203382356085423767852676282341
• The square root of 18008480393267472381 is 4243639993.3627112971
• The cube root of 18008480393267472381 is 2621152.9021402193

Scales and comparisons

• 18,008,480,393,267,472,381 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,008,480,393,267,472,381 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18008480393267472381 cubic inches would be around 218429.4 feet tall.

Recreational maths with 18008480393267472381

• 18008480393267472381 backwards is 18327476239308480081
• The number of decimal digits it has is: 20
• The sum of 18008480393267472381's digits is 84
• More coming soon!