13138792940

Names of 13138792940

• Cardinal: 13138792940 can be written as Thirteen billion, one hundred thirty-eight million, seven hundred ninety-two thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.313879294 × 10¹⁰

Factors of 13138792940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 41929

Divisors of 13138792940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 173 182 260 346 364 455 692 865 910 1211 1730 1820 2249 2422 3460 4498 4844 6055 8996 11245 12110 15743 22490 24220 31486 41729 44980 62972 78715 83458 157430 166916 208645 292103 314860 417290 542477 584206 834580 1084954 1168412 1460515 2169908 2712385 2921030 3797339 5424770 5842060 7219117 7594678 10849540 14438234 15189356 18986695 28876468 36095585 37973390 50533819 72191170 75946780 93848521 101067638 144382340 187697042 202135276 252669095 375394084 469242605 505338190 656939647 938485210 1010676380 1313879294 1876970420 2627758588 3284698235 6569396470 13138792940
• Sum of all divisors σ(n): 34155838080
• Sum of proper divisors (its aliquot sum) s(n): 21017045140
• 13138792940 is an abundant number, because the sum of its proper divisors (21017045140) is greater than itself. Its abundance is 7878252200

Bases of 13138792940

• Binary: 1100001111001000100001000111101100₂
• Hexadecimal: 0x30F2211EC
• Base-36: 61AHXIK

Squares and roots of 13138792940

• 13138792940 squared (13138792940²) is 172627879920193843600
• 13138792940 cubed (13138792940³) is 2268121969942610635723144184000
• The square root of 13138792940 is 114624.5738923377
• The cube root of 13138792940 is 2359.6729976399

Scales and comparisons

• 13,138,792,940 seconds is equal to 417 years, 40 weeks, 1 day, 8 hours, 42 minutes, 20 seconds.
• To count from 1 to 13,138,792,940 would take you about eight hundred thirty-five 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 13138792940 cubic inches would be around 196.6 feet tall.

Recreational maths with 13138792940

• 13138792940 backwards is 04929783131
• The number of decimal digits it has is: 11
• The sum of 13138792940's digits is 47
• More coming soon!