4538390172363949729

Names of 4538390172363949729

• Cardinal: 4538390172363949729 can be written as Four quintillion, five hundred thirty-eight quadrillion, three hundred ninety trillion, one hundred seventy-two billion, three hundred sixty-three million, nine hundred forty-nine thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 4.538390172363949729 × 10¹⁸

Factors of 4538390172363949729

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 191

Divisors of 4538390172363949729

• Number of divisors d(n): 63
• Complete list of divisors:
  1 37 47 107 1369 1739 2209 3959 5029 11449 64343 81733 146483 186073 236363 423613 538103 1225043 3024121 6884701 8745431 15673681 19909811 25290841 45326591 57577021 131079601 323580947 736663007 935761117 1677083867 2130349777 2706119987 4849945237 6160741247 14025517307 34623161329 78822941749 100126439519 179447973769 227947426139 289554838609 518944140359 659199313429 1500730351849 3704678262203 8434054767143 10713529028533 19200933193283 24390374596873 30982367731163 55527023018413 70534326536903 396400574055721 902443860084301 1146347606053031 2054499851681281 2609770081865411 3315113347234441 42414861423962147 96561493029020207 122659193847674317 4538390172363949729
• Sum of all divisors σ(n): 4810677406531503843
• Sum of proper divisors (its aliquot sum) s(n): 272287234167554114
• 4538390172363949729 is a deficient number, because the sum of its proper divisors (272287234167554114) is less than itself. Its deficiency is 4266102938196395615

Bases of 4538390172363949729

• Binary: 11111011111011100110011101000011111011111000001000011010100001₂
• Hexadecimal: 0x3EFB99D0FBE086A1
• Base-36: YHAT1QPBOVXD

Squares and roots of 4538390172363949729

• 4538390172363949729 squared (4538390172363949729²) is 20596985356609681330523786181239173441
• 4538390172363949729 cubed (4538390172363949729³) is 93477155922761560229256096696185766934753763910035947489
• 4538390172363949729 is a perfect square number. Its square root is 2130349777
• The cube root of 4538390172363949729 is 1655645.2089329629
• Being both a perfect square and a perfect cube, 4538390172363949729 is also a perfect sixth number.

Scales and comparisons

• 4,538,390,172,363,949,729 seconds is equal to 144,306,769,318 years, 34 weeks, 3 hours, 48 minutes, 49 seconds.
• To count from 1 to 4,538,390,172,363,949,729 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 4538390172363949729 cubic inches would be around 137970.4 feet tall.

Recreational maths with 4538390172363949729

• 4538390172363949729 backwards is 9279493632710938354
• The number of decimal digits it has is: 19
• The sum of 4538390172363949729's digits is 94
• More coming soon!