989142840

Names of 989142840

• Cardinal: 989142840 can be written as Nine hundred eighty-nine million, one hundred forty-two thousand, eight hundred forty.

Scientific notation

• Scientific notation: 9.8914284 × 10⁸

Factors of 989142840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 43630

Divisors of 989142840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 81 84 90 105 108 120 126 135 140 162 168 180 189 210 216 252 270 280 315 324 360 378 405 420 504 540 567 630 648 756 810 840 945 1080 1134 1260 1512 1620 1890 2268 2520 2835 3240 3780 4536 5670 7560 11340 22680 43613 87226 130839 174452 218065 261678 305291 348904 392517 436130 523356 610582 654195 785034 872260 915873 1046712 1177551 1221164 1308390 1526455 1570068 1744520 1831746 1962585 2355102 2442328 2616780 2747619 3052910 3140136 3532653 3663492 3925170 4579365 4710204 5233560 5495238 5887755 6105820 7065306 7326984 7850340 8242857 9158730 9420408 10990476 11775510 12211640 13738095 14130612 15700680 16485714 17663265 18317460 21980952 23551020 24728571 27476190 28261224 32971428 35326530 36634920 41214285 47102040 49457142 54952380 65942856 70653060 82428570 98914284 109904760 123642855 141306120 164857140 197828568 247285710 329714280 494571420 989142840
• Sum of all divisors σ(n): 3799651680
• Sum of proper divisors (its aliquot sum) s(n): 2810508840
• 989142840 is an abundant number, because the sum of its proper divisors (2810508840) is greater than itself. Its abundance is 1821366000

Bases of 989142840

• Binary: 111010111101010001111100111000₂
• Hexadecimal: 0x3AF51F38
• Base-36: GCWRI0

Squares and roots of 989142840

• 989142840 squared (989142840²) is 978403557923265600
• 989142840 cubed (989142840³) is 967780873950323437658304000
• The square root of 989142840 is 31450.6413289143
• The cube root of 989142840 is 996.3677695421

Scales and comparisons

• 989,142,840 seconds is equal to 31 years, 23 weeks, 3 days, 9 hours, 54 minutes.
• To count from 1 to 989,142,840 would take you about forty-seven 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 989142840 cubic inches would be around 83 feet tall.

Recreational maths with 989142840

• 989142840 backwards is 048241989
• 989142840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 989142840's digits is 45
• More coming soon!