2138007142639908121

Names of 2138007142639908121

• Cardinal: 2138007142639908121 can be written as Two quintillion, one hundred thirty-eight quadrillion, seven trillion, one hundred forty-two billion, six hundred thirty-nine million, nine hundred eight thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 2.138007142639908121 × 10¹⁸

Factors of 2138007142639908121

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 391693

Divisors of 2138007142639908121

• Number of divisors d(n): 32
• Complete list of divisors:
  1 29 199 5771 11503 127643 252319 333587 2289097 3701647 7317251 25400957 50211481 66383813 736627753 1456132949 1468277429 2902425457 32206754117 42580045441 84170338253 292187208371 577582665943 933995869393 6409144069283 8473429042759 16749897312347 185865178009207 370474292607851 10743754485627679 73724384228962349 2138007142639908121
• Sum of all divisors σ(n): 2223065222737920000
• Sum of proper divisors (its aliquot sum) s(n): 85058080098011879
• 2138007142639908121 is a deficient number, because the sum of its proper divisors (85058080098011879) is less than itself. Its deficiency is 2052949062541896242

Bases of 2138007142639908121

• Binary: 1110110101011101110100010101100101000010011001011010100011001₂
• Hexadecimal: 0x1DABBA2B284CB519
• Base-36: G8ROA22Z84RD

Squares and roots of 2138007142639908121

• 2138007142639908121 squared (2138007142639908121²) is 4571074541979264430253082767321750641
• 2138007142639908121 cubed (2138007142639908121³) is 9772990020291113888896538546576412830495419677112855561
• The square root of 2138007142639908121 is 1462192580.5583572721
• The cube root of 2138007142639908121 is 1288258.6006962343

Scales and comparisons

• 2,138,007,142,639,908,121 seconds is equal to 67,982,013,845 years, 33 weeks, 2 days, 18 hours, 2 minutes, 1 second.
• To count from 1 to 2,138,007,142,639,908,121 would take you about two hundred thirty-seven billion, nine hundred thirty-seven million, forty-eight thousand, four hundred fifty-nine 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 2138007142639908121 cubic inches would be around 107354.9 feet tall.

Recreational maths with 2138007142639908121

• 2138007142639908121 backwards is 1218099362417008312
• The number of decimal digits it has is: 19
• The sum of 2138007142639908121's digits is 67
• More coming soon!