18157504978368

Names of 18157504978368

• Cardinal: 18157504978368 can be written as Eighteen trillion, one hundred fifty-seven billion, five hundred four million, nine hundred seventy-eight thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8157504978368 × 10¹³

Factors of 18157504978368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 22381

Divisors of 18157504978368

• Number of divisors d(n): 210
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 144 162 168 189 192 216 224 252 288 324 336 378 432 448 504 567 576 648 672 756 864 1008 1134 1296 1344 1512 1728 2016 2268 2592 3024 4032 4536 5184 6048 9072 12096 18144 22369 36288 44738 67107 89476 134214 156583 178952 201321 268428 313166 357904 402642 469749 536856 603963 626332 715808 805284 939498 1073712 1207926 1252664 1409247 1431616 1610568 1811889 1878996 2147424 2415852 2505328 2818494 3221136 3623778 3757992 4227741 4294848 4831704 5010656 5636988 6442272 7247556 7515984 8455482 9663408 10021312 11273976 12683223 12884544 14495112 15031968 16910964 19326816 22547952 25366446 28990224 30063936 33821928 38653632 45095904 50732892 57980448 67643856 90191808 101465784 115960896 135287712 202931568 270575424 405863136 500372161 811726272 1000744322 1501116483 2001488644 3002232966 3502605127 4002977288 4503349449 6004465932 7005210254 8005954576 9006698898 10507815381 12008931864 13510048347 14010420508 16011909152 18013397796 21015630762 24017863728 27020096694 28020841016 31523446143 32023818304 36026795592 40530145041 42031261524 48035727456 54040193388 56041682032 63046892286 72053591184 81060290082 84062523048 94570338429 96071454912 108080386776 112083364064 126093784572 144107182368 162120580164 168125046096 189140676858 216160773552 224166728128 252187569144 283711015287 288214364736 324241160328 336250092192 378281353716 432321547104 504375138288 567422030574 648482320656 672500184384 756562707432 864643094208 1008750276576 1134844061148 1296964641312 1513125414864 2017500553152 2269688122296 2593929282624 3026250829728 4539376244592 6052501659456 9078752489184 18157504978368
• Sum of all divisors σ(n): 61516502063016
• Sum of proper divisors (its aliquot sum) s(n): 43358997084648
• 18157504978368 is an abundant number, because the sum of its proper divisors (43358997084648) is greater than itself. Its abundance is 25201492106280

Bases of 18157504978368

• Binary: 100001000001110011111101000100101110111000000₂
• Hexadecimal: 0x10839FA25DC0
• Base-36: 6FPFXNG00

Squares and roots of 18157504978368

• 18157504978368 squared (18157504978368²) is 329694987039458704147943424
• 18157504978368 cubed (18157504978368³) is 5986438368511944658222232772868807852032
• The square root of 18157504978368 is 4261162.3975586755
• The cube root of 18157504978368 is 26283.6327673395

Scales and comparisons

• 18,157,504,978,368 seconds is equal to 577,352 years, 25 weeks, 4 days, 14 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,157,504,978,368 would take you about one million, four hundred forty-three thousand, three hundred eighty-one 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 18157504978368 cubic inches would be around 2190.3 feet tall.

Recreational maths with 18157504978368

• 18157504978368 backwards is 86387940575181
• 18157504978368 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18157504978368's digits is 72
• More coming soon!