18491989005099072

Names of 18491989005099072

• Cardinal: 18491989005099072 can be written as Eighteen quadrillion, four hundred ninety-one trillion, nine hundred eighty-nine billion, five million, ninety-nine thousand and seventy-two.

Scientific notation

• Scientific notation: 1.8491989005099072 × 10¹⁶

Factors of 18491989005099072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1316121554

Divisors of 18491989005099072

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 94 96 108 141 144 173 188 192 216 282 288 346 376 423 432 519 564 576 692 752 846 864 1038 1128 1269 1384 1504 1557 1692 1728 2076 2256 2538 2768 3008 3114 3384 4152 4512 4671 5076 5536 6228 6768 8131 8304 9024 9342 10152 11072 12456 13536 16262 16608 18684 20304 24393 24912 27072 32524 33216 37368 40608 48786 49824 65048 73179 74736 81216 97572 99648 130096 146358 149472 195144 219537 260192 292716 298944 390288 439074 520384 585432 780576 878148 1170864 1561152 1756296 2341728 3512592 4683456 7025184 14050368 1316121329 2632242658 3948363987 5264485316 7896727974 10528970632 11845091961 15793455948 21057941264 23690183922 31586911896 35535275883 42115882528 47380367844 61857702463 63173823792 71070551766 84231765056 94760735688 123715404926 126347647584 142141103532 185573107389 189521471376 227688989917 247430809852 252695295168 284282207064 371146214778 379042942752 455377979834 494861619704 556719322167 568564414128 683066969751 742292429556 758085885504 910755959668 989723239408 1113438644334 1137128828256 1366133939502 1484584859112 1670157966501 1821511919336 1979446478816 2049200909253 2226877288668 2274257656512 2732267879004 2969169718224 3340315933002 3643023838672 3958892957632 4098401818506 4453754577336 5464535758008 5938339436448 6147602727759 6680631866004 7286047677344 8196803637012 8907509154672 10701382526099 10929071516016 11876678872896 12295205455518 13361263732008 14572095354688 16393607274024 17815018309344 21402765052198 21858143032032 24590410911036 26722527464016 32104147578297 32787214548048 35630036618688 42805530104396 43716286064064 49180821822072 53445054928032 64208295156594 65574429096096 85611060208792 96312442734891 98361643644144 106890109856064 128416590313188 131148858192192 171222120417584 192624885469782 196723287288288 256833180626376 288937328204673 342444240835168 385249770939564 393446574576576 513666361252752 577874656409346 684888481670336 770499541879128 1027332722505504 1155749312818692 1540999083758256 2054665445011008 2311498625637384 3081998167516512 4622997251274768 6163996335033024 9245994502549536 18491989005099072
• Sum of all divisors σ(n): 55840606368652800
• Sum of proper divisors (its aliquot sum) s(n): 37348617363553728
• 18491989005099072 is an abundant number, because the sum of its proper divisors (37348617363553728) is greater than itself. Its abundance is 18856628358454656

Bases of 18491989005099072

• Binary: 1000001101100100101110110110011110101101110000001000000₂
• Hexadecimal: 0x41B25DB3D6E040
• Base-36: 522V2H0MMO0

Squares and roots of 18491989005099072

• 18491989005099072 squared (18491989005099072²) is 341953657364704966694416535261184
• 18491989005099072 cubed (18491989005099072³) is 6323403272241539551924477815400358566263316021248
• The square root of 18491989005099072 is 135985252.8956690657
• The cube root of 18491989005099072 is 264440.4426833197

Scales and comparisons

• 18,491,989,005,099,072 seconds is equal to 587,988,050 years, 45 weeks, 6 days, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,491,989,005,099,072 would take you about one billion, seven hundred sixty-three million, nine hundred sixty-four 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 18491989005099072 cubic inches would be around 22036.7 feet tall.

Recreational maths with 18491989005099072

• 18491989005099072 backwards is 27099050098919481
• The number of decimal digits it has is: 17
• The sum of 18491989005099072's digits is 81
• More coming soon!