7145420144

Names of 7145420144

• Cardinal: 7145420144 can be written as Seven billion, one hundred forty-five million, four hundred twenty thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 7.145420144 × 10⁹

Factors of 7145420144

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 433

Divisors of 7145420144

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 16 17 31 34 53 59 62 68 106 118 124 136 212 236 248 271 272 424 472 496 527 542 848 901 944 1003 1054 1084 1643 1802 1829 2006 2108 2168 3127 3286 3604 3658 4012 4216 4336 4607 6254 6572 7208 7316 8024 8401 8432 9214 12508 13144 14363 14416 14632 15989 16048 16802 18428 25016 26288 27931 28726 29264 31093 31978 33604 36856 50032 53159 55862 57452 62186 63956 67208 73712 96937 106318 111724 114904 124372 127912 134416 142817 193874 212636 223448 229808 244171 248744 255824 271813 285634 387748 425272 445253 446896 488342 495659 497488 543626 571268 775496 847417 850544 890506 976684 991318 1087252 1142536 1550992 1647929 1694834 1781012 1953368 1982636 2174504 2285072 3295858 3389668 3562024 3906736 3965272 4349008 6591716 6779336 7124048 7569301 7930544 8426203 13183432 13558672 14406089 15138602 16852406 26269927 26366864 28812178 30277204 33704812 52539854 57624356 60554408 67409624 105079708 115248712 121108816 134819248 210159416 230497424 420318832 446588759 893177518 1786355036 3572710072 7145420144
• Sum of all divisors σ(n): 15736135680
• Sum of proper divisors (its aliquot sum) s(n): 8590715536
• 7145420144 is an abundant number, because the sum of its proper divisors (8590715536) is greater than itself. Its abundance is 1445295392

Bases of 7145420144

• Binary: 110101001111001100111010101110000₂
• Hexadecimal: 0x1A9E67570
• Base-36: 3A675GW

Squares and roots of 7145420144

• 7145420144 squared (7145420144²) is 51057029034280980736
• 7145420144 cubed (7145420144³) is 364823923754344186307090345984
• The square root of 7145420144 is 84530.5870321507
• The cube root of 7145420144 is 1926.0871034221

Scales and comparisons

• 7,145,420,144 seconds is equal to 227 years, 10 weeks, 3 days, 14 hours, 55 minutes, 44 seconds.
• To count from 1 to 7,145,420,144 would take you about four hundred fifty-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 7145420144 cubic inches would be around 160.5 feet tall.

Recreational maths with 7145420144

• 7145420144 backwards is 4410245417
• The number of decimal digits it has is: 10
• The sum of 7145420144's digits is 32
• More coming soon!