12181749398

Names of 12181749398

• Cardinal: 12181749398 can be written as Twelve billion, one hundred eighty-one million, seven hundred forty-nine thousand, three hundred ninety-eight.

Scientific notation

• Scientific notation: 1.2181749398 × 10¹⁰

Factors of 12181749398

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 311

Divisors of 12181749398

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 7 13 14 17 26 31 34 62 91 119 182 217 221 238 241 289 403 434 442 482 527 578 806 961 1054 1547 1687 1922 2023 2821 3094 3133 3374 3689 3757 4046 4097 5642 6266 6727 6851 7378 7471 7514 8194 8959 12493 13454 13702 14942 16337 17918 21931 24986 26299 28679 32674 43862 47957 52297 52598 53261 57358 62713 69649 87451 95914 97123 104594 106522 114359 116467 125426 127007 139298 174902 194246 212381 228718 231601 232934 254014 277729 372827 424762 463202 487543 555458 679861 745654 815269 889049 905437 975086 1359722 1486667 1621207 1630538 1651091 1778098 1810874 1944103 2159119 2973334 3010813 3242414 3302182 3610477 3888206 3937217 4318238 6021626 6338059 7220954 7874434 11557637 12676118 15113833 21075691 23115274 25273339 27560519 28068547 30227666 42151382 50546678 51183821 55121038 56137094 66932689 102367642 133865378 196479829 358286747 392959658 468528823 716573494 870124957 937057646 1740249914 6090874699 12181749398
• Sum of all divisors σ(n): 24788044512
• Sum of proper divisors (its aliquot sum) s(n): 12606295114
• 12181749398 is an abundant number, because the sum of its proper divisors (12606295114) is greater than itself. Its abundance is 424545716

Bases of 12181749398

• Binary: 1011010110000101101011111010010110₂
• Hexadecimal: 0x2D616BE96
• Base-36: 5LGP5ZQ

Squares and roots of 12181749398

• 12181749398 squared (12181749398²) is 148395018395673362404
• 12181749398 cubed (12181749398³) is 1807710926007692908269562832792
• The square root of 12181749398 is 110370.9626577569
• The cube root of 12181749398 is 2300.9290133613

Scales and comparisons

• 12,181,749,398 seconds is equal to 387 years, 17 weeks, 5 days, 11 hours, 16 minutes, 38 seconds.
• To count from 1 to 12,181,749,398 would take you about seven hundred seventy-four 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 12181749398 cubic inches would be around 191.7 feet tall.

Recreational maths with 12181749398

• 12181749398 backwards is 89394718121
• The number of decimal digits it has is: 11
• The sum of 12181749398's digits is 53
• More coming soon!