128449529390

Names of 128449529390

• Cardinal: 128449529390 can be written as One hundred twenty-eight billion, four hundred forty-nine million, five hundred twenty-nine thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.2844952939 × 10¹¹

Factors of 128449529390

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1907

Divisors of 128449529390

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 7 10 13 14 17 26 34 35 61 65 70 79 85 91 119 122 130 158 170 182 221 238 305 395 427 442 455 553 595 610 790 793 854 910 1027 1037 1105 1106 1190 1343 1547 1586 1723 2054 2074 2135 2210 2686 2765 3094 3446 3965 4270 4819 5135 5185 5530 5551 6715 7189 7259 7735 7930 8615 9401 9638 10270 10370 11102 12061 13430 13481 14378 14518 15470 17230 17459 18802 22399 24095 24122 26962 27755 29291 33733 34918 35945 36295 44798 47005 48190 55510 58582 60305 62647 67405 67466 71890 72590 81923 87295 94010 94367 105103 111995 120610 122213 125294 134810 136117 146455 156793 163846 168665 174590 188734 205037 210206 223990 244426 272234 292910 313235 313586 337330 380783 409615 410074 438529 471835 525515 573461 611065 626470 680585 735721 761566 783965 819230 877058 943670 952819 1025185 1051030 1064999 1146922 1222130 1361170 1366339 1471442 1567930 1769521 1786751 1903915 1905638 2050370 2129998 2192645 2313989 2665481 2732678 2867305 3539042 3573502 3678605 3807830 4385290 4627978 4764095 5324995 5330962 5734610 6831695 7357210 7454993 8303137 8847605 8933755 9528190 9564373 10649990 11569945 12386647 12507257 13327405 13663390 14909986 16197923 16606274 17695210 17867510 19128746 23139890 23227763 24773294 25014514 26654810 30081857 32395846 37274965 41515685 46455526 47821865 58121959 60163714 61933235 62536285 74549930 80989615 83031370 95643730 107940781 116138815 116243918 123866470 125072570 141153329 150409285 161979230 162594341 210572999 215881562 232277630 282306658 290609795 300818570 325188682 421145998 539703905 581219590 705766645 755585467 812971705 988073303 1052864995 1079407810 1411533290 1511170934 1625943410 1834993277 1976146606 2105729990 3669986554 3777927335 4940366515 7555854670 9174966385 9880733030 12844952939 18349932770 25689905878 64224764695 128449529390
• Sum of all divisors σ(n): 310300139520
• Sum of proper divisors (its aliquot sum) s(n): 181850610130
• 128449529390 is an abundant number, because the sum of its proper divisors (181850610130) is greater than itself. Its abundance is 53401080740

Bases of 128449529390

• Binary: 1110111101000001100000100011000101110₂
• Hexadecimal: 0x1DE830462E
• Base-36: 1N0BJ772

Squares and roots of 128449529390

• 128449529390 squared (128449529390²) is 16499281600512473772100
• 128449529390 cubed (128449529390³) is 2119324956858913238850963112019000
• The square root of 128449529390 is 358398.5622041473
• The cube root of 128449529390 is 5045.5770100905

Scales and comparisons

• 128,449,529,390 seconds is equal to 4,084 years, 15 weeks, 3 days, 8 hours, 49 minutes, 50 seconds.
• To count from 1 to 128,449,529,390 would take you about eight thousand, one hundred sixty-eight 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 128449529390 cubic inches would be around 420.5 feet tall.

Recreational maths with 128449529390

• 128449529390 backwards is 093925944821
• The number of decimal digits it has is: 12
• The sum of 128449529390's digits is 56
• More coming soon!