18161032305990

Names of 18161032305990

• Cardinal: 18161032305990 can be written as Eighteen trillion, one hundred sixty-one billion, thirty-two million, three hundred five thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.816103230599 × 10¹³

Factors of 18161032305990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 634846

Divisors of 18161032305990

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 87 105 145 174 203 210 290 406 435 609 870 1015 1218 2030 3045 4733 6090 9466 14199 23665 28398 33131 47330 66262 70995 99393 137257 141990 165655 198786 274514 331310 411771 496965 630067 686285 823542 960799 993930 1260134 1372570 1890201 1921598 2058855 2882397 3150335 3780402 4117710 4410469 4803995 5764794 6300670 8820938 9451005 9607990 13231407 14411985 18271943 18902010 22052345 26462814 28823970 36543886 44104690 54815829 66157035 91359715 109631658 127903601 132314070 182719430 255807202 274079145 383710803 548158290 639518005 767421606 1279036010 1918554015 2982107111 3837108030 5964214222 8946321333 14910535555 17892642666 20874749777 29821071110 41749499554 44731606665 62624249331 86481106219 89463213330 104373748885 125248498662 172962212438 208747497770 259443318657 313121246655 432405531095 518886637314 605367743533 626242493310 864811062190 1210735487066 1297216593285 1816103230599 2594433186570 3026838717665 3632206461198 6053677435330 9080516152995 18161032305990
• Sum of all divisors σ(n): 51541780239360
• Sum of proper divisors (its aliquot sum) s(n): 33380747933370
• 18161032305990 is an abundant number, because the sum of its proper divisors (33380747933370) is greater than itself. Its abundance is 15219715627380

Bases of 18161032305990

• Binary: 100001000010001110001111000010001110101000110₂
• Hexadecimal: 0x108471E11D46
• Base-36: 6FR29QBEU

Squares and roots of 18161032305990

• 18161032305990 squared (18161032305990²) is 329823094419212456989880100
• 18161032305990 cubed (18161032305990³) is 5989927873008907507526655886596611799000
• The square root of 18161032305990 is 4261576.2701129731
• The cube root of 18161032305990 is 26285.3346344405

Scales and comparisons

• 18,161,032,305,990 seconds is equal to 577,464 years, 33 weeks, 6 days, 4 hours, 6 minutes, 30 seconds.
• To count from 1 to 18,161,032,305,990 would take you about one million, four hundred forty-three thousand, six hundred sixty-one 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 18161032305990 cubic inches would be around 2190.4 feet tall.

Recreational maths with 18161032305990

• 18161032305990 backwards is 09950323016181
• The number of decimal digits it has is: 14
• The sum of 18161032305990's digits is 48
• More coming soon!