642680124081

Names of 642680124081

• Cardinal: 642680124081 can be written as Six hundred forty-two billion, six hundred eighty million, one hundred twenty-four thousand and eighty-one.

Scientific notation

• Scientific notation: 6.42680124081 × 10¹¹

Factors of 642680124081

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 144

Divisors of 642680124081

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 29 53 59 87 159 177 841 1537 1711 2523 2809 3127 4611 5133 8427 9381 24389 44573 49619 73167 81461 90683 133719 148857 148877 165731 244383 272049 446631 497193 1292617 1438951 2362369 2629807 3877851 4316853 4317433 4806199 7087107 7889421 8783743 12952299 14418597 26351229 68508701 76264403 125205557 139379771 205526103 228793209 254728547 375616671 418139313 764185641 3630961153 4042013359 7387127863 10892883459 12126040077 22161383589 214226708027 642680124081
• Sum of all divisors σ(n): 919908576000
• Sum of proper divisors (its aliquot sum) s(n): 277228451919
• 642680124081 is a deficient number, because the sum of its proper divisors (277228451919) is less than itself. Its deficiency is 365451672162

Bases of 642680124081

• Binary: 1001010110100010101110000111001010110001₂
• Hexadecimal: 0x95A2B872B1
• Base-36: 878R5HGX

Squares and roots of 642680124081

• 642680124081 squared (642680124081²) is 413037741888769556094561
• 642680124081 cubed (642680124081³) is 265451147207210469611267753249223441
• The square root of 642680124081 is 801673.3275349755
• The cube root of 642680124081 is 8629.7514910983

Scales and comparisons

• 642,680,124,081 seconds is equal to 20,435 years, 12 weeks, 3 days, 8 hours, 41 minutes, 21 seconds.
• To count from 1 to 642,680,124,081 would take you about forty thousand, eight hundred seventy 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 642680124081 cubic inches would be around 719.1 feet tall.

Recreational maths with 642680124081

• 642680124081 backwards is 180421086246
• The number of decimal digits it has is: 12
• The sum of 642680124081's digits is 42
• More coming soon!