18031375890

Names of 18031375890

• Cardinal: 18031375890 can be written as Eighteen billion, thirty-one million, three hundred seventy-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.803137589 × 10¹⁰

Factors of 18031375890

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3014

Divisors of 18031375890

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 17 18 22 30 33 34 45 51 55 66 85 90 99 102 110 153 165 170 187 198 255 306 330 374 419 495 510 561 765 838 935 990 1122 1257 1530 1683 1870 2095 2514 2557 2805 3366 3771 4190 4609 5114 5610 6285 7123 7542 7671 8415 9218 12570 12785 13827 14246 15342 16830 18855 21369 23013 23045 25570 27654 28127 35615 37710 38355 41481 42738 43469 46026 46090 56254 64107 69135 71230 76710 78353 82962 84381 86938 106845 115065 128214 130407 138270 140635 156706 168762 207405 213690 217345 230130 235059 253143 260814 281270 320535 391221 391765 414810 421905 434690 470118 478159 506286 641070 652035 705177 782442 783530 843810 956318 1071383 1175295 1265715 1304070 1410354 1434477 1956105 2142766 2350590 2390795 2531430 2868954 3214149 3525885 3912210 4303431 4781590 5356915 6428298 7051770 7172385 8606862 9642447 10713830 11785213 14344770 16070745 18213511 19284894 21517155 23570426 32141490 35355639 36427022 43034310 48212235 54640533 58926065 70711278 91067555 96424470 106066917 109281066 117852130 163921599 176778195 182135110 200348621 212133834 273202665 327843198 353556390 400697242 530334585 546405330 601045863 819607995 1001743105 1060669170 1202091726 1639215990 1803137589 2003486210 3005229315 3606275178 6010458630 9015687945 18031375890
• Sum of all divisors σ(n): 54302451840
• Sum of proper divisors (its aliquot sum) s(n): 36271075950
• 18031375890 is an abundant number, because the sum of its proper divisors (36271075950) is greater than itself. Its abundance is 18239700060

Bases of 18031375890

• Binary: 10000110010110000001111011000010010₂
• Hexadecimal: 0x432C0F612
• Base-36: 8A7EYOI

Squares and roots of 18031375890

• 18031375890 squared (18031375890²) is 325130516486473292100
• 18031375890 cubed (18031375890³) is 5862550556077442030300867469000
• The square root of 18031375890 is 134280.9587767379
• The cube root of 18031375890 is 2622.2632527741

Scales and comparisons

• 18,031,375,890 seconds is equal to 573 years, 17 weeks, 5 days, 11 hours, 31 minutes, 30 seconds.
• To count from 1 to 18,031,375,890 would take you about one thousand, one hundred forty-six 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 18031375890 cubic inches would be around 218.5 feet tall.

Recreational maths with 18031375890

• 18031375890 backwards is 09857313081
• 18031375890 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18031375890's digits is 45
• More coming soon!