18313421568

Names of 18313421568

• Cardinal: 18313421568 can be written as Eighteen billion, three hundred thirteen million, four hundred twenty-one thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8313421568 × 10¹⁰

Factors of 18313421568

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 724

Divisors of 18313421568

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 53 64 78 96 104 106 128 156 159 192 208 212 256 312 318 384 416 424 624 636 653 689 768 832 848 1248 1272 1306 1378 1664 1696 1959 2067 2496 2544 2612 2756 2809 3328 3392 3918 4134 4992 5088 5224 5512 5618 6784 7836 8268 8427 8489 9984 10176 10448 11024 11236 13568 15672 16536 16854 16978 20352 20896 22048 22472 25467 31344 33072 33708 33956 34609 36517 40704 41792 44096 44944 50934 62688 66144 67416 67912 69218 73034 83584 88192 89888 101868 103827 109551 125376 132288 134832 135824 138436 146068 167168 176384 179776 203736 207654 219102 250752 264576 269664 271648 276872 292136 359552 407472 415308 438204 449917 501504 529152 539328 543296 553744 584272 719104 814944 830616 876408 899834 1078656 1086592 1107488 1168544 1349751 1629888 1661232 1752816 1799668 1834277 2157312 2173184 2214976 2337088 2699502 3259776 3322464 3505632 3599336 3668554 4429952 4674176 5399004 5502831 6519552 6644928 7011264 7198672 7337108 8859904 9348352 10798008 11005662 13289856 14022528 14397344 14674216 21596016 22011324 23845601 26579712 28045056 28794688 29348432 43192032 44022648 47691202 57589376 58696864 71536803 86384064 88045296 95382404 115178752 117393728 143073606 172768128 176090592 190764808 234787456 286147212 345536256 352181184 381529616 469574912 572294424 704362368 763059232 1144588848 1408724736 1526118464 2289177696 3052236928 4578355392 6104473856 9156710784 18313421568
• Sum of all divisors σ(n): 53580655632
• Sum of proper divisors (its aliquot sum) s(n): 35267234064
• 18313421568 is an abundant number, because the sum of its proper divisors (35267234064) is greater than itself. Its abundance is 16953812496

Bases of 18313421568

• Binary: 10001000011100100001010001100000000₂
• Hexadecimal: 0x44390A300
• Base-36: 8EVC6IO

Squares and roots of 18313421568

• 18313421568 squared (18313421568²) is 335381409527287578624
• 18313421568 cubed (18313421568³) is 6141981138743269026911257362432
• The square root of 18313421568 is 135327.0910350177
• The cube root of 18313421568 is 2635.8650052179

Scales and comparisons

• 18,313,421,568 seconds is equal to 582 years, 16 weeks, 21 hours, 32 minutes, 48 seconds.
• To count from 1 to 18,313,421,568 would take you about one thousand, one hundred sixty-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 18313421568 cubic inches would be around 219.7 feet tall.

Recreational maths with 18313421568

• 18313421568 backwards is 86512431381
• The number of decimal digits it has is: 11
• The sum of 18313421568's digits is 42
• More coming soon!