138508002580

Names of 138508002580

• Cardinal: 138508002580 can be written as One hundred thirty-eight billion, five hundred eight million, two thousand, five hundred eighty.

Scientific notation

• Scientific notation: 1.3850800258 × 10¹¹

Factors of 138508002580

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7095

Divisors of 138508002580

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 29 58 109 116 145 218 290 331 436 545 580 662 1090 1324 1655 2180 3161 3310 6322 6619 6620 9599 12644 13238 15805 19198 26476 31610 33095 36079 38396 47995 63220 66190 72158 95990 132380 144316 180395 191951 191980 360790 383902 721471 721580 767804 959755 1046291 1442942 1919510 2092582 2190889 2885884 3607355 3839020 4185164 4381778 5231455 7214710 8763556 10462910 10954445 14429420 20922659 20925820 21908890 41845318 43817780 63535781 83690636 104613295 127071562 209226590 238806901 254143124 317678905 418453180 477613802 635357810 955227604 1194034505 1270715620 2388069010 4776138020 6925400129 13850800258 27701600516 34627000645 69254001290 138508002580
• Sum of all divisors σ(n): 304620624000
• Sum of proper divisors (its aliquot sum) s(n): 166112621420
• 138508002580 is an abundant number, because the sum of its proper divisors (166112621420) is greater than itself. Its abundance is 27604618840

Bases of 138508002580

• Binary: 10000000111111101110000110010100010100₂
• Hexadecimal: 0x203FB86514
• Base-36: 1RMO36S4

Squares and roots of 138508002580

• 138508002580 squared (138508002580²) is 19184466778701286656400
• 138508002580 cubed (138508002580³) is 2657202174080282101253970773512000
• The square root of 138508002580 is 372166.6328138513
• The cube root of 138508002580 is 5173.9824998845

Scales and comparisons

• 138,508,002,580 seconds is equal to 4,404 years, 6 weeks, 3 days, 21 hours, 9 minutes, 40 seconds.
• To count from 1 to 138,508,002,580 would take you about eight thousand, eight hundred eight 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 138508002580 cubic inches would be around 431.2 feet tall.

Recreational maths with 138508002580

• 138508002580 backwards is 085200805831
• The number of decimal digits it has is: 12
• The sum of 138508002580's digits is 40
• More coming soon!