18939865009648

Names of 18939865009648

• Cardinal: 18939865009648 can be written as Eighteen trillion, nine hundred thirty-nine billion, eight hundred sixty-five million, nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8939865009648 × 10¹³

Factors of 18939865009648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 759

Divisors of 18939865009648

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 11 16 22 31 37 44 62 74 88 124 148 157 176 248 296 314 341 407 496 521 592 628 682 814 961 1042 1147 1256 1364 1369 1628 1727 1922 2084 2294 2512 2728 2738 3256 3454 3844 4168 4588 4867 5456 5476 5731 5809 6512 6908 7688 8336 9176 9734 10571 10952 11462 11618 12617 13816 15059 15376 16151 18352 19277 19468 21142 21904 22924 23236 25234 27632 30118 32302 35557 38554 38936 42284 42439 45848 46472 50468 53537 60236 63899 64604 71114 77108 77872 81797 84568 84878 91696 92944 100936 107074 120472 127798 129208 142228 150877 154216 163594 169136 169756 177661 180079 201872 212047 214148 214933 240944 255596 258416 284456 301754 308432 327188 339512 355322 360158 391127 424094 428296 429866 466829 500681 511192 568912 597587 603508 654376 679024 710644 713249 720316 782254 848188 856592 859732 899767 933658 1001362 1022384 1195174 1207016 1308752 1315609 1421288 1426498 1440632 1564508 1659647 1696376 1719464 1799534 1867316 1980869 2002724 2364263 2390348 2414032 2535707 2631218 2842576 2852996 2881264 3026489 3129016 3319294 3392752 3438928 3599068 3734632 3961738 4005448 4728526 4780696 5071414 5262436 5507491 5582449 5705992 6052978 6258032 6573457 6638588 6662923 7198136 7469264 7845739 7923476 8010896 9457052 9561392 10142828 10524872 11014982 11164898 11411984 12105956 13146914 13277176 13325846 14396272 14471699 15691478 15846952 18525197 18914104 20285656 21049744 22029964 22110719 22329796 24211912 26293828 26554352 26651692 27892777 28943398 31382956 31693904 33291379 37050394 37828208 40571312 44059928 44221438 44659592 48423824 52587656 53303384 55785554 57886796 61406939 62765912 66582758 73292153 74100788 78606917 88119856 88442876 89319184 93821159 105175312 106606768 111571108 111980093 115773592 122813878 125531824 133165516 146584306 148201576 157213834 176885752 187642318 203777167 206550613 223142216 223960186 231547184 243217909 245627756 266331032 293168612 296403152 314427668 353771504 375284636 407554334 413101226 446284432 447920372 486435818 491255512 532662064 586337224 628855336 685432289 750569272 815108668 826202452 864676087 895840744 972871636 982511024 1032032749 1172674448 1231781023 1257710672 1370864578 1501138544 1630217336 1652404904 1729352174 1791681488 1945743272 2064065498 2272056743 2463562046 2741729156 2908455929 3260434672 3304809808 3458704348 3471382883 3891486544 4128130996 4544113486 4927124092 5483458312 5816911858 6917408696 6942765766 7539755179 8256261992 9088226972 9854248184 10966916624 11633823716 13834817392 13885531532 15079510358 16512523984 18176453944 19708496368 23267647432 27771063064 30159020716 31993015219 36352907888 38185211713 46535294864 55542126128 60318041432 63986030438 76370423426 107612869373 120636082864 127972060876 152740846852 215225738746 255944121752 305481693704 430451477492 511888243504 610963387408 860902954984 1183741563103 1721805909968 2367483126206 4734966252412 9469932504824 18939865009648
• Sum of all divisors σ(n): 42866090425872
• Sum of proper divisors (its aliquot sum) s(n): 23926225416224
• 18939865009648 is an abundant number, because the sum of its proper divisors (23926225416224) is greater than itself. Its abundance is 4986360406576

Bases of 18939865009648

• Binary: 100010011100111000111111011010000110111110000₂
• Hexadecimal: 0x1139C7ED0DF0
• Base-36: 6POUQM3N4

Squares and roots of 18939865009648

• 18939865009648 squared (18939865009648²) is 358718486583688635133083904
• 18939865009648 cubed (18939865009648³) is 6794079712360289910014294127196953505792
• The square root of 18939865009648 is 4351995.5204076211
• The cube root of 18939865009648 is 26655.8351020413

Scales and comparisons

• 18,939,865,009,648 seconds is equal to 602,229 years, 6 weeks, 2 days, 13 hours, 47 minutes, 28 seconds.
• To count from 1 to 18,939,865,009,648 would take you about one million, five hundred five thousand, five hundred seventy-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 18939865009648 cubic inches would be around 2221.3 feet tall.

Recreational maths with 18939865009648

• 18939865009648 backwards is 84690056893981
• The number of decimal digits it has is: 14
• The sum of 18939865009648's digits is 76
• More coming soon!