7809942420

Names of 7809942420

• Cardinal: 7809942420 can be written as Seven billion, eight hundred nine million, nine hundred forty-two thousand, four hundred twenty.

Scientific notation

• Scientific notation: 7.80994242 × 10⁹

Factors of 7809942420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 958

Divisors of 7809942420

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 941 980 1260 1470 1764 1882 2205 2823 2940 3764 4410 4705 5646 6587 8469 8820 9410 11292 13174 14115 16938 18820 19761 26348 28230 32935 33876 39522 42345 46109 56460 59283 65870 79044 84690 92218 98805 118566 131740 138327 169380 184436 197610 230545 237132 276654 296415 395220 414981 461090 553308 592830 691635 829962 885481 922180 1185660 1383270 1659924 1770962 2074905 2656443 2766540 3541924 4149810 4427405 5312886 6198367 7969329 8299620 8854810 10625772 12396734 13282215 15938658 17709620 18595101 24793468 26564430 30991835 31877316 37190202 39846645 43388569 53128860 55785303 61983670 74380404 79693290 86777138 92975505 111570606 123967340 130165707 159386580 173554276 185951010 216942845 223141212 260331414 278926515 371902020 390497121 433885690 520662828 557853030 650828535 780994242 867771380 1115706060 1301657070 1561988484 1952485605 2603314140 3904971210 7809942420
• Sum of all divisors σ(n): 27587256606
• Sum of proper divisors (its aliquot sum) s(n): 19777314186
• 7809942420 is an abundant number, because the sum of its proper divisors (19777314186) is greater than itself. Its abundance is 11967371766

Bases of 7809942420

• Binary: 111010001100000100100001110010100₂
• Hexadecimal: 0x1D1824394
• Base-36: 3L5U650

Squares and roots of 7809942420

• 7809942420 squared (7809942420²) is 60995200603715456400
• 7809942420 cubed (7809942420³) is 476369004611366952548020488000
• The square root of 7809942420 is 88373.8786067467
• The cube root of 7809942420 is 1984.0347630513

Scales and comparisons

• 7,809,942,420 seconds is equal to 248 years, 17 weeks, 1 day, 20 hours, 27 minutes.
• To count from 1 to 7,809,942,420 would take you about four hundred ninety-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 7809942420 cubic inches would be around 165.3 feet tall.

Recreational maths with 7809942420

• 7809942420 backwards is 0242499087
• 7809942420 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7809942420's digits is 45
• More coming soon!