1988413940

Names of 1988413940

• Cardinal: 1988413940 can be written as One billion, nine hundred eighty-eight million, four hundred thirteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.98841394 × 10⁹

Factors of 1988413940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 679

Divisors of 1988413940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 23 46 67 92 115 134 149 230 268 298 335 433 460 596 670 745 866 1340 1490 1541 1732 2165 2980 3082 3427 4330 6164 6854 7705 8660 9959 9983 13708 15410 17135 19918 19966 29011 30820 34270 39836 39932 49795 49915 58022 64517 68540 99590 99830 116044 129034 145055 199180 199660 229609 258068 290110 322585 459218 580220 645170 667253 918436 1148045 1290340 1334506 1483891 2296090 2669012 2967782 3336265 4322639 4592180 5935564 6672530 7419455 8645278 13345060 14838910 17290556 21613195 29677820 43226390 86452780 99420697 198841394 397682788 497103485 994206970 1988413940
• Sum of all divisors σ(n): 4462214400
• Sum of proper divisors (its aliquot sum) s(n): 2473800460
• 1988413940 is an abundant number, because the sum of its proper divisors (2473800460) is greater than itself. Its abundance is 485386520

Bases of 1988413940

• Binary: 1110110100001001100100111110100₂
• Hexadecimal: 0x7684C9F4
• Base-36: WVUM0K

Squares and roots of 1988413940

• 1988413940 squared (1988413940²) is 3953789996786323600
• 1988413940 cubed (1988413940³) is 7861771145442481047590984000
• The square root of 1988413940 is 44591.6353142605
• The cube root of 1988413940 is 1257.4834165767

Scales and comparisons

• 1,988,413,940 seconds is equal to 63 years, 11 weeks, 5 days, 1 hour, 12 minutes, 20 seconds.
• To count from 1 to 1,988,413,940 would take you about one hundred twenty-six 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 1988413940 cubic inches would be around 104.8 feet tall.

Recreational maths with 1988413940

• 1988413940 backwards is 0493148891
• The number of decimal digits it has is: 10
• The sum of 1988413940's digits is 47
• More coming soon!