138168391674011677225

Names of 138168391674011677225

• Cardinal: 138168391674011677225 can be written as One hundred thirty-eight quintillion, one hundred sixty-eight quadrillion, three hundred ninety-one trillion, six hundred seventy-four billion, eleven million, six hundred seventy-seven thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 1.38168391674011677225 × 10²⁰

Factors of 138168391674011677225

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8256

Divisors of 138168391674011677225

• Number of divisors d(n): 90
• Complete list of divisors:
  1 5 13 25 65 169 325 845 2197 2371 4225 5867 10985 11855 28561 29335 30823 54925 59275 76271 142805 146675 154115 381355 400699 714025 770575 991523 1906775 2003495 4957615 5209087 10017475 12889799 13910657 24788075 26045435 34421689 64448995 67718131 69553285 130227175 167567387 172108445 180838541 322244975 338590655 347766425 447481957 837836935 860542225 904192705 1692953275 2237409785 2350901033 4189184675 4520963525 5817265441 11187048925 11754505165 29086327205 30561713429 58772525825 75624450733 81613824619 145431636025 152808567145 378122253665 397302274577 408069123095 764042835725 983117859529 1060979720047 1890611268325 1986511372885 2040345615475 4915589297645 5304898600235 9932556864425 13792736360611 24577946488225 26524493001175 68963681803055 179305572687943 344818409015275 896527863439715 2330972444943259 4482639317198575 11654862224716295 58274311123581475
• Sum of all divisors σ(n): 138188445343548981634
• Sum of proper divisors (its aliquot sum) s(n): 20053669537304409
• 138168391674011677225 is a deficient number, because the sum of its proper divisors (20053669537304409) is less than itself. Its deficiency is 138148338004474372816

Bases of 138168391674011677225

• Binary: 1110111110101111000101111000010111000010100100000010111001000101001₂
• Hexadecimal: 0x77D78BC2E14817229
• Base-36: T5QLB5ISLXLWP

Squares and roots of 138168391674011677225

• 138168391674011677225 squared (138168391674011677225²) is 19090504457783099369070930985657583700625
• 138168391674011677225 cubed (138168391674011677225³) is 2637704297177441195479371710166689900498472353974078530765625
• 138168391674011677225 is a perfect square number. Its square root is 11754505165
• The cube root of 138168391674011677225 is 5169750.3040654977

Scales and comparisons

• 138,168,391,674,011,677,225 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,168,391,674,011,677,225 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 138168391674011677225 cubic inches would be around 430812.5 feet tall.

Recreational maths with 138168391674011677225

• 138168391674011677225 backwards is 522776110476193861831
• The number of decimal digits it has is: 21
• The sum of 138168391674011677225's digits is 88
• More coming soon!