12385136520

Names of 12385136520

• Cardinal: 12385136520 can be written as Twelve billion, three hundred eighty-five million, one hundred thirty-six thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.238513652 × 10¹⁰

Factors of 12385136520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 216

Divisors of 12385136520

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 79 81 90 108 120 127 135 158 162 180 216 237 243 254 270 316 324 360 381 395 405 474 486 508 540 632 635 648 711 762 790 810 948 972 1016 1080 1143 1185 1215 1270 1422 1524 1580 1620 1896 1905 1944 2133 2286 2370 2430 2540 2844 3048 3160 3240 3429 3555 3810 4266 4572 4740 4860 5080 5688 5715 6399 6858 7110 7620 8532 9144 9480 9720 10033 10287 10665 11430 12798 13716 14220 15240 16129 17064 17145 19197 20066 20574 21330 22860 25596 27432 28440 30099 30861 31995 32258 34290 38394 40132 41148 42660 45720 48387 50165 51192 51435 60198 61722 63990 64516 68580 76788 80264 80645 82296 85320 90297 95985 96774 100330 102870 120396 123444 127980 129032 137160 145161 150495 153576 154305 161290 180594 191970 193548 200660 205740 240792 241935 246888 255960 270891 290322 300990 308610 322580 361188 383940 387096 401320 411480 435483 451485 483870 541782 580644 601980 617220 645160 722376 725805 767880 812673 870966 902970 967740 1083564 1161288 1203960 1234440 1274191 1306449 1354455 1451610 1625346 1741932 1805940 1935480 2167128 2177415 2438019 2548382 2612898 2708910 2903220 3250692 3483864 3611880 3822573 3919347 4063365 4354830 4876038 5096764 5225796 5417820 5806440 6370955 6501384 6532245 7645146 7838694 8126730 8709660 9752076 10193528 10451592 10835640 11467719 12190095 12741910 13064490 15290292 15677388 16253460 17419320 19112865 19504152 19596735 22935438 24380190 25483820 26128980 30580584 31354776 32506920 34403157 38225730 39193470 45870876 48760380 50967640 52257960 57338595 68806314 76451460 78386940 91741752 97520760 103209471 114677190 137612628 152902920 156773880 172015785 206418942 229354380 275225256 309628413 344031570 412837884 458708760 516047355 619256826 688063140 825675768 1032094710 1238513652 1376126280 1548142065 2064189420 2477027304 3096284130 4128378840 6192568260 12385136520
• Sum of all divisors σ(n): 42606345600
• Sum of proper divisors (its aliquot sum) s(n): 30221209080
• 12385136520 is an abundant number, because the sum of its proper divisors (30221209080) is greater than itself. Its abundance is 17836072560

Bases of 12385136520

• Binary: 1011100010001101100010111110001000₂
• Hexadecimal: 0x2E2362F88
• Base-36: 5OTSGI0

Squares and roots of 12385136520

• 12385136520 squared (12385136520²) is 153391606619037710400
• 12385136520 cubed (12385136520³) is 1899775988998917674332223808000
• The square root of 12385136520 is 111288.5282497707
• The cube root of 12385136520 is 2313.6638770221

Scales and comparisons

• 12,385,136,520 seconds is equal to 393 years, 42 weeks, 11 hours, 42 minutes.
• To count from 1 to 12,385,136,520 would take you about seven hundred eighty-seven 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 12385136520 cubic inches would be around 192.8 feet tall.

Recreational maths with 12385136520

• 12385136520 backwards is 02563158321
• 12385136520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12385136520's digits is 36
• More coming soon!