18947436690

Names of 18947436690

• Cardinal: 18947436690 can be written as Eighteen billion, nine hundred forty-seven million, four hundred thirty-six thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.894743669 × 10¹⁰

Factors of 18947436690

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 28148

Divisors of 18947436690

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 10 13 14 15 19 21 26 30 35 38 39 42 57 65 70 78 91 95 105 114 130 133 169 182 190 195 210 247 266 273 285 338 390 399 455 494 507 546 570 665 741 798 845 910 1014 1183 1235 1330 1365 1482 1690 1729 1995 2366 2470 2535 2730 3211 3458 3549 3705 3990 5070 5187 5915 6422 7098 7410 8645 9633 10374 11830 16055 17290 17745 19266 22477 25935 28099 32110 35490 44954 48165 51870 56198 67431 84297 96330 112385 134862 140495 168594 196693 224770 280990 337155 365287 393386 421485 533881 590079 674310 730574 842970 983465 1067762 1095861 1180158 1601643 1826435 1966930 2191722 2557009 2669405 2950395 3203286 3652870 3737167 4748731 5114018 5338810 5479305 5900790 6940453 7474334 7671027 8008215 9497462 10958610 11211501 12785045 13880906 14246193 15342054 16016430 18685835 20821359 22423002 23743655 25570090 28492386 33241117 34702265 37371670 38355135 41642718 47487310 48583171 56057505 66482234 69404530 71230965 76710270 90225889 97166342 99723351 104106795 112115010 142461930 145749513 166205585 180451778 199446702 208213590 242915855 270677667 291499026 332411170 451129445 485831710 498616755 541355334 631581223 728747565 902258890 997233510 1263162446 1353388335 1457495130 1894743669 2706776670 3157906115 3789487338 6315812230 9473718345 18947436690
• Sum of all divisors σ(n): 59239296000
• Sum of proper divisors (its aliquot sum) s(n): 40291859310
• 18947436690 is an abundant number, because the sum of its proper divisors (40291859310) is greater than itself. Its abundance is 21344422620

Bases of 18947436690

• Binary: 10001101001010110101111000010010010₂
• Hexadecimal: 0x4695AF092
• Base-36: 8PCTBPU

Squares and roots of 18947436690

• 18947436690 squared (18947436690²) is 359005357121558156100
• 18947436690 cubed (18947436690³) is 6802231275431563796857887309000
• The square root of 18947436690 is 137649.6883033159
• The cube root of 18947436690 is 2665.9386738995

Scales and comparisons

• 18,947,436,690 seconds is equal to 602 years, 24 weeks, 3 days, 51 minutes, 30 seconds.
• To count from 1 to 18,947,436,690 would take you about one thousand, two hundred four 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 18947436690 cubic inches would be around 222.2 feet tall.

Recreational maths with 18947436690

• 18947436690 backwards is 09663474981
• 18947436690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18947436690's digits is 57
• More coming soon!