18125489109

Names of 18125489109

• Cardinal: 18125489109 can be written as Eighteen billion, one hundred twenty-five million, four hundred eighty-nine thousand, one hundred nine.

Scientific notation

• Scientific notation: 1.8125489109 × 10¹⁰

Factors of 18125489109

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 281

Divisors of 18125489109

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 13 19 21 39 49 57 71 79 89 91 133 147 213 237 247 267 273 399 497 553 623 637 741 923 931 1027 1157 1349 1491 1501 1659 1691 1729 1869 1911 2769 2793 3081 3471 3479 3871 4047 4361 4503 5073 5187 5609 6319 6461 7031 7189 8099 9443 10437 10507 11613 11837 12103 13083 16827 17537 18957 19383 19513 21093 21567 21983 24297 28329 31521 35511 36309 39263 44233 45227 49217 50323 52611 56693 58539 65949 66101 72917 73549 82147 82859 91403 106571 117789 120061 122759 132699 133589 135681 136591 147651 150969 153881 170079 198303 218751 220647 246441 248577 274209 274841 309631 319713 344519 360183 368277 400767 409773 461643 499201 510419 575029 639821 745997 824523 840427 859313 928893 935123 956137 1033557 1077167 1385423 1497603 1531257 1560793 1725087 1736657 1919463 2237991 2521281 2577939 2805369 2868411 3231501 3494407 3572933 4025203 4156269 4478747 4682379 5209971 5221979 5882989 6489613 6545861 9484819 9697961 10483221 10718799 10925551 12075609 12156599 13436241 15665937 17648967 19468839 19637583 24460849 28454457 29093883 32776653 36469797 45427291 66393733 67885727 73382547 76478857 85096193 123302647 136281873 199181199 203657181 229436571 255288579 317991037 369907941 464756131 863118529 953973111 1394268393 2589355587 6041829703 18125489109
• Sum of all divisors σ(n): 33094656000
• Sum of proper divisors (its aliquot sum) s(n): 14969166891
• 18125489109 is a deficient number, because the sum of its proper divisors (14969166891) is less than itself. Its deficiency is 3156322218

Bases of 18125489109

• Binary: 10000111000010111010000001111010101₂
• Hexadecimal: 0x4385D03D5
• Base-36: 8BRG4WL

Squares and roots of 18125489109

• 18125489109 squared (18125489109²) is 328533355440477613881
• 18125489109 cubed (18125489109³) is 5954827755979602888158372722029
• The square root of 18125489109 is 134630.9366713311
• The cube root of 18125489109 is 2626.8175643291

Scales and comparisons

• 18,125,489,109 seconds is equal to 576 years, 17 weeks, 2 days, 18 hours, 5 minutes, 9 seconds.
• To count from 1 to 18,125,489,109 would take you about one thousand, one hundred fifty-two 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 18125489109 cubic inches would be around 218.9 feet tall.

Recreational maths with 18125489109

• 18125489109 backwards is 90198452181
• The number of decimal digits it has is: 11
• The sum of 18125489109's digits is 48
• More coming soon!