12420872672

Names of 12420872672

• Cardinal: 12420872672 can be written as Twelve billion, four hundred twenty million, eight hundred seventy-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.2420872672 × 10¹⁰

Factors of 12420872672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1812

Divisors of 12420872672

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 13 16 26 31 32 43 52 62 86 104 124 169 172 208 248 338 344 403 416 496 559 676 688 806 992 1118 1333 1352 1376 1612 1723 2236 2666 2704 3224 3446 4472 5239 5332 5408 6448 6892 7267 8944 10478 10664 12896 13784 14534 17329 17888 20956 21328 22399 27568 29068 34658 41912 42656 44798 53413 55136 58136 69316 74089 83824 89596 106826 116272 138632 148178 167648 179192 213652 225277 232544 277264 291187 296356 358384 427304 450554 554528 582374 592712 694369 716768 854608 901108 963157 1164748 1185424 1388738 1709216 1802216 1926314 2296759 2329496 2370848 2777476 3604432 3852628 4593518 4658992 5554952 7208864 7705256 9026797 9187036 9317984 11109904 12521041 15410512 18053594 18374072 22219808 25042082 29857867 30821024 36107188 36748144 50084164 59715734 72214376 73496288 100168328 119431468 144428752 200336656 238862936 288857504 388152271 400673312 477725872 776304542 955451744 1552609084 3105218168 6210436336 12420872672
• Sum of all divisors σ(n): 27985402368
• Sum of proper divisors (its aliquot sum) s(n): 15564529696
• 12420872672 is an abundant number, because the sum of its proper divisors (15564529696) is greater than itself. Its abundance is 3143657024

Bases of 12420872672

• Binary: 1011100100010101110111100111100000₂
• Hexadecimal: 0x2E45779E0
• Base-36: 5PF2EOW

Squares and roots of 12420872672

• 12420872672 squared (12420872672²) is 154278077934036419584
• 12420872672 cubed (12420872672³) is 1916268362099559182663631208448
• The square root of 12420872672 is 111448.9689140279
• The cube root of 12420872672 is 2315.8870270023

Scales and comparisons

• 12,420,872,672 seconds is equal to 394 years, 49 weeks, 1 day, 2 hours, 24 minutes, 32 seconds.
• To count from 1 to 12,420,872,672 would take you about seven hundred eighty-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 12420872672 cubic inches would be around 193 feet tall.

Recreational maths with 12420872672

• 12420872672 backwards is 27627802421
• The number of decimal digits it has is: 11
• The sum of 12420872672's digits is 41
• More coming soon!