18438752556

Names of 18438752556

• Cardinal: 18438752556 can be written as Eighteen billion, four hundred thirty-eight million, seven hundred fifty-two thousand, five hundred fifty-six.

Scientific notation

• Scientific notation: 1.8438752556 × 10¹⁰

Factors of 18438752556

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1719

Divisors of 18438752556

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 127 252 254 381 508 571 762 889 1009 1142 1143 1524 1713 1778 2018 2284 2286 2667 3027 3426 3556 3997 4036 4572 5139 5334 6054 6852 7063 7994 8001 9081 10278 10668 11991 12108 14126 15988 16002 18162 20556 21189 23982 28252 32004 35973 36324 42378 47964 63567 71946 72517 84756 127134 128143 143892 145034 217551 254268 256286 290068 384429 435102 507619 512572 576139 652653 768858 870204 897001 1015238 1152278 1153287 1305306 1522857 1537716 1728417 1794002 2030476 2304556 2306574 2610612 2691003 3045714 3456834 3588004 4032973 4568571 4613148 5185251 5382006 6091428 6913668 8065946 8073009 9137142 10370502 10764012 12098919 16131892 16146018 18274284 20741004 24197838 32292036 36296757 48395676 72593514 73169653 145187028 146339306 219508959 292678612 439017918 512187571 658526877 878035836 1024375142 1317053754 1536562713 2048750284 2634107508 3073125426 4609688139 6146250852 9219376278 18438752556
• Sum of all divisors σ(n): 53834260480
• Sum of proper divisors (its aliquot sum) s(n): 35395507924
• 18438752556 is an abundant number, because the sum of its proper divisors (35395507924) is greater than itself. Its abundance is 16956755368

Bases of 18438752556

• Binary: 10001001011000010010000100100101100₂
• Hexadecimal: 0x44B09092C
• Base-36: 8GXYGJ0

Squares and roots of 18438752556

• 18438752556 squared (18438752556²) is 339987595821396533136
• 18438752556 cubed (18438752556³) is 6268947151460070244850958695616
• The square root of 18438752556 is 135789.3683467155
• The cube root of 18438752556 is 2641.8643356673

Scales and comparisons

• 18,438,752,556 seconds is equal to 586 years, 15 weeks, 2 days, 11 hours, 42 minutes, 36 seconds.
• To count from 1 to 18,438,752,556 would take you about one thousand, one 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 18438752556 cubic inches would be around 220.2 feet tall.

Recreational maths with 18438752556

• 18438752556 backwards is 65525783481
• The number of decimal digits it has is: 11
• The sum of 18438752556's digits is 54
• More coming soon!