138181972113

Names of 138181972113

• Cardinal: 138181972113 can be written as One hundred thirty-eight billion, one hundred eighty-one million, nine hundred seventy-two thousand, one hundred thirteen.

Scientific notation

• Scientific notation: 1.38181972113 × 10¹¹

Factors of 138181972113

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 762

Divisors of 138181972113

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 23 27 53 69 81 159 207 243 477 621 683 1219 1431 1863 2049 3657 4293 5589 6147 10971 12879 15709 18441 32913 36199 47127 55323 98739 108597 141381 165969 296217 325791 424143 466489 832577 977373 1272429 1399467 2497731 2932119 3817287 4198401 7493193 8796357 10729247 12595203 22479579 24723917 32187741 37785609 67438737 74171751 96563223 113356827 202316211 222515253 289689669 568650091 667545759 869069007 1705950273 2002637277 2607207021 5117850819 6007911831 15353552457 46060657371 138181972113
• Sum of all divisors σ(n): 220386059712
• Sum of proper divisors (its aliquot sum) s(n): 82204087599
• 138181972113 is a deficient number, because the sum of its proper divisors (82204087599) is less than itself. Its deficiency is 55977884514

Bases of 138181972113

• Binary: 10000000101100010010011001000010010001₂
• Hexadecimal: 0x202C499091
• Base-36: 1RH9Z829

Squares and roots of 138181972113

• 138181972113 squared (138181972113²) is 19094257417037909684769
• 138181972113 cubed (138181972113³) is 2638482145919575847124562578846897
• The square root of 138181972113 is 371728.3579618321
• The cube root of 138181972113 is 5169.9196751197

Scales and comparisons

• 138,181,972,113 seconds is equal to 4,393 years, 39 weeks, 3 days, 9 hours, 8 minutes, 33 seconds.
• To count from 1 to 138,181,972,113 would take you about eight thousand, seven hundred eighty-seven 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 138181972113 cubic inches would be around 430.8 feet tall.

Recreational maths with 138181972113

• 138181972113 backwards is 311279181831
• The number of decimal digits it has is: 12
• The sum of 138181972113's digits is 45
• More coming soon!