12720162420

Names of 12720162420

• Cardinal: 12720162420 can be written as Twelve billion, seven hundred twenty million, one hundred sixty-two thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.272016242 × 10¹⁰

Factors of 12720162420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 14230

Divisors of 12720162420

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 28 30 31 35 36 42 45 46 60 62 63 69 70 84 90 92 93 105 115 124 126 138 140 155 161 180 186 207 210 217 230 252 276 279 310 315 322 345 372 414 420 434 460 465 483 558 620 630 644 651 690 713 805 828 868 930 966 1035 1085 1116 1260 1302 1380 1395 1426 1449 1610 1860 1932 1953 2070 2139 2170 2415 2604 2790 2852 2898 3220 3255 3565 3906 4140 4278 4340 4830 4991 5580 5796 6417 6510 7130 7245 7812 8556 9660 9765 9982 10695 12834 13020 14159 14260 14490 14973 19530 19964 21390 24955 25668 28318 28980 29946 32085 39060 42477 42780 44919 49910 56636 59892 64170 70795 74865 84954 89838 99113 99820 127431 128340 141590 149730 169908 179676 198226 212385 224595 254862 283180 297339 299460 325657 396452 424770 438929 449190 495565 509724 594678 637155 651314 849540 877858 892017 898380 976971 991130 1189356 1274310 1302628 1316787 1486695 1628285 1755716 1784034 1953942 1982260 2194645 2279599 2548620 2633574 2930913 2973390 3072503 3256570 3568068 3907884 3950361 4389290 4460085 4559198 4884855 5267148 5861826 5946780 6145006 6513140 6583935 6838797 7900722 8778580 8920170 9118396 9217509 9769710 10095367 11397995 11723652 12290012 13167870 13677594 14654565 15362515 15801444 17840340 18435018 19539420 19751805 20190734 20516391 22795990 26335740 27355188 27652527 29309130 30286101 30725030 34193985 36870036 39503610 40381468 41032782 45591980 46087545 50476835 55305054 58618260 60572202 61450060 68387970 70667569 79007220 82065564 90858303 92175090 100953670 102581955 110610108 121144404 136775940 138262635 141335138 151430505 181716606 184350180 201907340 205163910 212002707 276525270 282670276 302861010 353337845 363433212 410327820 424005414 454291515 553050540 605722020 636008121 706675690 848010828 908583030 1060013535 1272016242 1413351380 1817166060 2120027070 2544032484 3180040605 4240054140 6360081210 12720162420
• Sum of all divisors σ(n): 47501475840
• Sum of proper divisors (its aliquot sum) s(n): 34781313420
• 12720162420 is an abundant number, because the sum of its proper divisors (34781313420) is greater than itself. Its abundance is 22061151000

Bases of 12720162420

• Binary: 1011110110001011100100011001110100₂
• Hexadecimal: 0x2F62E4674
• Base-36: 5UD9850

Squares and roots of 12720162420

• 12720162420 squared (12720162420²) is 161802531991180256400
• 12720162420 cubed (12720162420³) is 2058154486895058868905244488000
• The square root of 12720162420 is 112783.6974921465
• The cube root of 12720162420 is 2334.3405749777

Scales and comparisons

• 12,720,162,420 seconds is equal to 404 years, 24 weeks, 2 hours, 27 minutes.
• To count from 1 to 12,720,162,420 would take you about 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 12720162420 cubic inches would be around 194.5 feet tall.

Recreational maths with 12720162420

• 12720162420 backwards is 02426102721
• The number of decimal digits it has is: 11
• The sum of 12720162420's digits is 27
• More coming soon!