30898890

Names of 30898890

• Cardinal: 30898890 can be written as Thirty million, eight hundred ninety-eight thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 3.089889 × 10⁷

Factors of 30898890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 103

Divisors of 30898890

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 23 30 33 45 46 55 59 66 69 90 99 110 115 118 138 165 177 198 207 230 253 295 330 345 354 414 495 506 529 531 590 649 690 759 885 990 1035 1058 1062 1265 1298 1357 1518 1587 1770 1947 2070 2277 2530 2645 2655 2714 3174 3245 3795 3894 4071 4554 4761 5290 5310 5819 5841 6490 6785 7590 7935 8142 9522 9735 11385 11638 11682 12213 13570 14927 15870 17457 19470 20355 22770 23805 24426 29095 29205 29854 31211 34914 40710 44781 47610 52371 58190 58410 61065 62422 74635 87285 89562 93633 104742 122130 134343 149270 156055 174570 187266 223905 261855 268686 280899 312110 343321 447810 468165 523710 561798 671715 686642 936330 1029963 1343430 1404495 1716605 2059926 2808990 3089889 3433210 5149815 6179778 10299630 15449445 30898890
• Sum of all divisors σ(n): 93169440
• Sum of proper divisors (its aliquot sum) s(n): 62270550
• 30898890 is an abundant number, because the sum of its proper divisors (62270550) is greater than itself. Its abundance is 31371660

Bases of 30898890

• Binary: 1110101110111101011001010₂
• Hexadecimal: 0x1D77ACA
• Base-36: IE9QI

Squares and roots of 30898890

• 30898890 squared (30898890²) is 954741403232100
• 30898890 cubed (30898890³) is 29500449596914302369000
• The square root of 30898890 is 5558.6770008699
• The cube root of 30898890 is 313.7961609939

Scales and comparisons

• 30,898,890 seconds is equal to 51 weeks, 15 hours, 1 minute, 30 seconds.
• To count from 1 to 30,898,890 would take you about twenty-four weeks!

  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 30898890 cubic inches would be around 26.1 feet tall.

Recreational maths with 30898890

• 30898890 backwards is 09889803
• 30898890 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30898890's digits is 45
• More coming soon!