18030939381

Names of 18030939381

• Cardinal: 18030939381 can be written as Eighteen billion, thirty million, nine hundred thirty-nine thousand, three hundred eighty-one.

Scientific notation

• Scientific notation: 1.8030939381 × 10¹⁰

Factors of 18030939381

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 216

Divisors of 18030939381

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 13 17 21 39 51 63 79 91 97 117 119 153 169 221 237 273 291 357 507 553 663 679 711 819 873 1027 1071 1183 1261 1343 1521 1547 1649 1659 1989 2037 2197 2873 3081 3549 3783 4029 4641 4947 4977 6111 6591 7189 7663 8619 8827 9243 9401 10647 11349 11543 12087 13351 13923 14841 15379 16393 17459 19773 20111 21437 21567 22989 25857 26481 28203 34629 37349 40053 46137 49179 52377 53641 60333 64311 64701 68967 79443 84609 93457 99619 103887 112047 114751 120159 122213 130271 138411 147537 150059 157131 160923 173563 180999 192933 213109 226967 261443 278681 280371 298857 336141 344253 366639 390813 450177 482769 520689 639327 680901 697333 784329 836043 841113 896571 911897 1032759 1099917 1172439 1214941 1295047 1350531 1491763 1562067 1588769 1693523 1917981 1950767 2042703 2091999 2352987 2508129 2735691 2950571 3622853 3644823 3885141 4475289 4766307 5080569 5852301 6275997 8207073 8851713 9065329 10868559 10934469 11655423 11854661 13425867 14298921 15241707 16835611 17556903 20653997 22015799 25359971 26555139 27195987 32605677 35563983 50506833 61961991 66047397 76079913 81587961 106691949 117849277 151520499 154110593 185885973 198142191 228239739 286205387 353547831 462331779 858616161 1060643493 1386995337 2003437709 2575848483 6010313127 18030939381
• Sum of all divisors σ(n): 34930022400
• Sum of proper divisors (its aliquot sum) s(n): 16899083019
• 18030939381 is a deficient number, because the sum of its proper divisors (16899083019) is less than itself. Its deficiency is 1131856362

Bases of 18030939381

• Binary: 10000110010101110100100110011110101₂
• Hexadecimal: 0x432BA4CF5
• Base-36: 8A75LV9

Squares and roots of 18030939381

• 18030939381 squared (18030939381²) is 325114774961296663161
• 18030939381 cubed (18030939381³) is 5862124799194596754613566843341
• The square root of 18030939381 is 134279.3334098735
• The cube root of 18030939381 is 2622.2420924227

Scales and comparisons

• 18,030,939,381 seconds is equal to 573 years, 17 weeks, 10 hours, 16 minutes, 21 seconds.
• To count from 1 to 18,030,939,381 would take you about one thousand, one hundred forty-six 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 18030939381 cubic inches would be around 218.5 feet tall.

Recreational maths with 18030939381

• 18030939381 backwards is 18393903081
• The number of decimal digits it has is: 11
• The sum of 18030939381's digits is 45
• More coming soon!