9979897890

Names of 9979897890

• Cardinal: 9979897890 can be written as Nine billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 9.97989789 × 10⁹

Factors of 9979897890

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 317

Divisors of 9979897890

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 10 15 29 30 31 37 58 62 73 74 87 93 111 137 145 146 155 174 185 186 219 222 274 290 310 365 370 411 435 438 465 555 685 730 822 870 899 930 1073 1095 1110 1147 1370 1798 2055 2117 2146 2190 2263 2294 2697 2701 3219 3441 3973 4110 4234 4247 4495 4526 5069 5365 5394 5402 5735 6351 6438 6789 6882 7946 8103 8494 8990 10001 10138 10585 10730 11315 11470 11919 12702 12741 13485 13505 13578 15207 16095 16206 17205 19865 20002 21170 21235 22630 23838 25345 25482 26970 27010 30003 30414 31755 32190 33263 33945 34410 39730 40515 42470 50005 50690 59595 60006 63510 63705 65627 66526 67890 76035 78329 81030 83731 99789 100010 119190 123163 127410 131254 147001 150015 152070 156658 157139 166315 167462 196881 199578 234987 246326 251193 290029 294002 300030 310031 314278 328135 332630 369489 370037 391645 393762 418655 441003 469974 471417 498945 502386 580058 615815 620062 656270 735005 738978 740074 783290 785695 837310 870087 882006 930093 942834 984405 997890 1110111 1174935 1231630 1255965 1450145 1470010 1550155 1571390 1740174 1847445 1850185 1860186 1968810 2205015 2220222 2349870 2357085 2428199 2511930 2900290 3100310 3694890 3700370 4350435 4410030 4557031 4650465 4714170 4856398 5550555 7284597 8700870 8990899 9114062 9300930 10731073 11101110 11471147 12140995 13671093 14569194 17981798 21462146 22785155 22942294 24281990 26972697 27342186 32193219 34413441 36422985 44954495 45570310 53655365 53945394 57355735 64386438 68355465 68826882 72845970 89908990 107310730 114711470 134863485 136710930 160966095 172067205 269726970 321932190 332663263 344134410 665326526 997989789 1663316315 1995979578 3326632630 4989948945 9979897890
• Sum of all divisors σ(n): 26822430720
• Sum of proper divisors (its aliquot sum) s(n): 16842532830
• 9979897890 is an abundant number, because the sum of its proper divisors (16842532830) is greater than itself. Its abundance is 6862634940

Bases of 9979897890

• Binary: 1001010010110110010010100000100010₂
• Hexadecimal: 0x252D92822
• Base-36: 4L1RUHU

Squares and roots of 9979897890

• 9979897890 squared (9979897890²) is 99598361894826452100
• 9979897890 cubed (9979897890³) is 993981481721634911228976069000
• The square root of 9979897890 is 99899.4388873131
• The cube root of 9979897890 is 2152.9900988505

Scales and comparisons

• 9,979,897,890 seconds is equal to 317 years, 17 weeks, 1 day, 1 hour, 51 minutes, 30 seconds.
• To count from 1 to 9,979,897,890 would take you about six hundred thirty-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 9979897890 cubic inches would be around 179.4 feet tall.

Recreational maths with 9979897890

• 9979897890 backwards is 0987989799
• The number of decimal digits it has is: 10
• The sum of 9979897890's digits is 75
• More coming soon!