18018919520

Names of 18018919520

• Cardinal: 18018919520 can be written as Eighteen billion, eighteen million, nine hundred nineteen thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.801891952 × 10¹⁰

Factors of 18018919520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2925

Divisors of 18018919520

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 56 70 80 86 112 137 140 160 172 215 224 274 280 301 344 430 548 560 602 685 688 860 959 1096 1120 1204 1370 1376 1505 1720 1918 2192 2408 2731 2740 3010 3440 3836 4384 4795 4816 5462 5480 5891 6020 6880 7672 9590 9632 10924 10960 11782 12040 13655 15344 19117 19180 21848 21920 23564 24080 27310 29455 30688 38234 38360 41237 43696 47128 48160 54620 58910 76468 76720 82474 87392 94256 95585 109240 117433 117820 152936 153440 164948 188512 191170 206185 218480 234866 235640 305872 329896 374147 382340 412370 436960 469732 471280 587165 611744 659792 748294 764680 822031 824740 939464 942560 1174330 1319584 1496588 1529360 1644062 1649480 1870735 1878928 2348660 2619029 2993176 3058720 3288124 3298960 3741470 3757856 4110155 4697320 5238058 5986352 6576248 6597920 7482940 8220310 9394640 10476116 11972704 13095145 13152496 14965880 16088321 16440620 18789280 20952232 26190290 26304992 29931760 32176642 32881240 41904464 52380580 59863520 64353284 65762480 80441605 83808928 104761160 112618247 128706568 131524960 160883210 209522320 225236494 257413136 321766420 419044640 450472988 514826272 563091235 643532840 900945976 1126182470 1287065680 1801891952 2252364940 2574131360 3603783904 4504729880 9009459760 18018919520
• Sum of all divisors σ(n): 50164240896
• Sum of proper divisors (its aliquot sum) s(n): 32145321376
• 18018919520 is an abundant number, because the sum of its proper divisors (32145321376) is greater than itself. Its abundance is 14126401856

Bases of 18018919520

• Binary: 10000110010000000101110010001100000₂
• Hexadecimal: 0x43202E460
• Base-36: 89ZZZA8

Squares and roots of 18018919520

• 18018919520 squared (18018919520²) is 324681460668237030400
• 18018919520 cubed (18018919520³) is 5850409109417008471061393408000
• The square root of 18018919520 is 134234.5690200555
• The cube root of 18018919520 is 2621.6592795297

Scales and comparisons

• 18,018,919,520 seconds is equal to 572 years, 49 weeks, 1 day, 7 hours, 25 minutes, 20 seconds.
• To count from 1 to 18,018,919,520 would take you about one thousand, one hundred forty-five 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 18018919520 cubic inches would be around 218.5 feet tall.

Recreational maths with 18018919520

• 18018919520 backwards is 02591981081
• The number of decimal digits it has is: 11
• The sum of 18018919520's digits is 44
• More coming soon!