18138351551901

Names of 18138351551901

• Cardinal: 18138351551901 can be written as Eighteen trillion, one hundred thirty-eight billion, three hundred fifty-one million, five hundred fifty-one thousand, nine hundred one.

Scientific notation

• Scientific notation: 1.8138351551901 × 10¹³

Factors of 18138351551901

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 300

Divisors of 18138351551901

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 19 21 57 61 83 127 133 183 249 361 381 399 427 581 889 1083 1159 1281 1577 1743 2413 2527 2667 3477 3721 4731 5063 7239 7581 7747 8113 10541 11039 11163 15189 16891 22021 23241 24339 26047 29963 31623 33117 35441 45847 50673 54229 66063 70699 73787 78141 89889 96197 106323 137541 147193 154147 162687 200279 209741 212097 221361 226981 288591 308843 320929 441579 462441 472567 494893 600837 629223 643001 673379 680943 926529 962787 1030351 1343281 1401953 1417701 1484679 1588867 1827743 1929003 2020137 2161901 2796667 3091053 3307969 3805301 4029843 4205859 4312639 4501007 4766601 5483229 5868017 6485703 8390001 8978773 9402967 9923907 11415903 12217019 12794201 12937917 13503021 17604051 18839423 19576669 26637107 26936319 28208901 28826587 30188473 36651057 38382603 39223061 41076119 56518269 58730007 62851411 79911321 81940141 85519133 86479761 90565419 111492323 117669183 123228357 131875961 170596687 188554233 201786109 232123361 245820423 256557399 274561427 334476969 357949037 395627883 511790061 547705153 573580987 605358327 696370083 745238159 780446261 823684281 1073847111 1194176809 1624863527 1643115459 1720742961 2235714477 2341338783 2392606721 2505643259 3582530427 3833936071 4874590581 5216667113 6801031703 7177820163 7516929777 10406397907 11501808213 14159525021 15650001339 16748247047 20403095109 31219193721 42478575063 45459527699 47607221921 50244741141 72844785349 99116675147 136378583097 142821665763 218534356047 297350025441 318216693893 863731026281 954650081679 2591193078843 6046117183967 18138351551901
• Sum of all divisors σ(n): 30250479845376
• Sum of proper divisors (its aliquot sum) s(n): 12112128293475
• 18138351551901 is a deficient number, because the sum of its proper divisors (12112128293475) is less than itself. Its deficiency is 6026223258426

Bases of 18138351551901

• Binary: 100000111111100101010000000000100010110011101₂
• Hexadecimal: 0x107F2A00459D
• Base-36: 6FGN671JX

Squares and roots of 18138351551901

• 18138351551901 squared (18138351551901²) is 328999797020349415096713801
• 18138351551901 cubed (18138351551901³) is 5967513978859168808996756410373594485701
• The square root of 18138351551901 is 4258914.3630626103
• The cube root of 18138351551901 is 26274.3877610611

Scales and comparisons

• 18,138,351,551,901 seconds is equal to 576,743 years, 24 weeks, 4 days, 10 hours, 38 minutes, 21 seconds.
• To count from 1 to 18,138,351,551,901 would take you about one million, four hundred forty-one thousand, eight hundred fifty-eight 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 18138351551901 cubic inches would be around 2189.5 feet tall.

Recreational maths with 18138351551901

• 18138351551901 backwards is 10915515383181
• The number of decimal digits it has is: 14
• The sum of 18138351551901's digits is 51
• More coming soon!