30978133900

Names of 30978133900

• Cardinal: 30978133900 can be written as Thirty billion, nine hundred seventy-eight million, one hundred thirty-three thousand, nine hundred.

Scientific notation

• Scientific notation: 3.09781339 × 10¹⁰

Factors of 30978133900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3257

Divisors of 30978133900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 25 28 35 38 50 70 76 95 100 133 140 175 190 266 350 380 475 532 665 700 950 1093 1330 1900 2131 2186 2660 3325 4262 4372 5465 6650 7651 8524 10655 10930 13300 14917 15302 20767 21310 21860 27325 29834 30604 38255 40489 41534 42620 53275 54650 59668 74585 76510 80978 83068 103835 106550 109300 145369 149170 153020 161956 191275 202445 207670 213100 283423 290738 298340 372925 382550 404890 415340 519175 566846 581476 726845 745850 765100 809780 1012225 1038350 1133692 1417115 1453690 1491700 2024450 2076700 2329183 2834230 2907380 3634225 4048900 4658366 5668460 7085575 7268450 9316732 11645915 14171150 14536900 16304281 23291830 28342300 32608562 44254477 46583660 58229575 65217124 81521405 88508954 116459150 163042810 177017908 221272385 232918300 309781339 326085620 407607025 442544770 619562678 815214050 885089540 1106361925 1239125356 1548906695 1630428100 2212723850 3097813390 4425447700 6195626780 7744533475 15489066950 30978133900
• Sum of all divisors σ(n): 80981205760
• Sum of proper divisors (its aliquot sum) s(n): 50003071860
• 30978133900 is an abundant number, because the sum of its proper divisors (50003071860) is greater than itself. Its abundance is 19024937960

Bases of 30978133900

• Binary: 11100110110011100001100111110001100₂
• Hexadecimal: 0x73670CF8C
• Base-36: E8BKX3G

Squares and roots of 30978133900

• 30978133900 squared (30978133900²) is 959644779926329210000
• 30978133900 cubed (30978133900³) is 29728004488993858402861219000000
• The square root of 30978133900 is 176006.0621115079
• The cube root of 30978133900 is 3140.6418792721

Scales and comparisons

• 30,978,133,900 seconds is equal to 985 years, 3 days, 5 hours, 11 minutes, 40 seconds.
• To count from 1 to 30,978,133,900 would take you about one thousand, nine hundred seventy 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 30978133900 cubic inches would be around 261.7 feet tall.

Recreational maths with 30978133900

• 30978133900 backwards is 00933187903
• The number of decimal digits it has is: 11
• The sum of 30978133900's digits is 43
• More coming soon!