12438509040

Names of 12438509040

• Cardinal: 12438509040 can be written as Twelve billion, four hundred thirty-eight million, five hundred nine thousand and forty.

Scientific notation

• Scientific notation: 1.243850904 × 10¹⁰

Factors of 12438509040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 17340

Divisors of 12438509040

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 37 40 45 48 54 60 72 74 80 81 90 108 111 120 135 144 148 162 180 185 216 222 240 243 270 296 324 333 360 370 405 432 444 486 540 555 592 648 666 720 740 810 888 972 999 1080 1110 1215 1296 1332 1480 1620 1665 1776 1944 1998 2160 2220 2430 2664 2960 2997 3240 3330 3888 3996 4440 4860 4995 5328 5994 6480 6660 7992 8880 8991 9720 9990 11988 13320 14985 15984 17293 17982 19440 19980 23976 26640 29970 34586 35964 39960 44955 47952 51879 59940 69172 71928 79920 86465 89910 103758 119880 138344 143856 155637 172930 179820 207516 239760 259395 276688 311274 345860 359640 415032 466911 518790 622548 639841 691720 719280 778185 830064 933822 1037580 1245096 1279682 1383440 1400733 1556370 1867644 1919523 2075160 2334555 2490192 2559364 2801466 3112740 3199205 3735288 3839046 4150320 4202199 4669110 5118728 5602932 5758569 6225480 6398410 7003665 7470576 7678092 8404398 9338220 9597615 10237456 11205864 11517138 12450960 12796820 14007330 15356184 16808796 17275707 18676440 19195230 21010995 22411728 23034276 25593640 28014660 28792845 30712368 33617592 34551414 37352880 38390460 42021990 46068552 51187280 51827121 56029320 57585690 67235184 69102828 76780920 84043980 86378535 92137104 103654242 112058640 115171380 138205656 153561840 155481363 168087960 172757070 207308484 230342760 259135605 276411312 310962726 336175920 345514140 414616968 460685520 518271210 621925452 691028280 777406815 829233936 1036542420 1243850904 1382056560 1554813630 2073084840 2487701808 3109627260 4146169680 6219254520 12438509040
• Sum of all divisors σ(n): 44493173088
• Sum of proper divisors (its aliquot sum) s(n): 32054664048
• 12438509040 is an abundant number, because the sum of its proper divisors (32054664048) is greater than itself. Its abundance is 19616155008

Bases of 12438509040

• Binary: 1011100101011001001001010111110000₂
• Hexadecimal: 0x2E56495F0
• Base-36: 5PPKF00

Squares and roots of 12438509040

• 12438509040 squared (12438509040²) is 154716507138161721600
• 12438509040 cubed (12438509040³) is 1924442672675249103103563264000
• The square root of 12438509040 is 111528.0639121835
• The cube root of 12438509040 is 2316.9826161453

Scales and comparisons

• 12,438,509,040 seconds is equal to 395 years, 26 weeks, 2 days, 5 hours, 24 minutes.
• To count from 1 to 12,438,509,040 would take you about seven hundred ninety-one 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 12438509040 cubic inches would be around 193.1 feet tall.

Recreational maths with 12438509040

• 12438509040 backwards is 04090583421
• 12438509040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12438509040's digits is 36
• More coming soon!