30400920

Names of 30400920

• Cardinal: 30400920 can be written as Thirty million, four hundred thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.040092 × 10⁷

Factors of 30400920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 874

Divisors of 30400920

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 81 88 90 99 108 110 120 132 135 162 165 180 198 216 220 264 270 297 324 330 360 396 405 440 495 540 594 648 660 792 810 853 891 990 1080 1188 1320 1485 1620 1706 1782 1980 2376 2559 2970 3240 3412 3564 3960 4265 4455 5118 5940 6824 7128 7677 8530 8910 9383 10236 11880 12795 15354 17060 17820 18766 20472 23031 25590 28149 30708 34120 35640 37532 38385 46062 46915 51180 56298 61416 69093 75064 76770 84447 92124 93830 102360 112596 115155 138186 140745 153540 168894 184248 187660 225192 230310 253341 276372 281490 307080 337788 345465 375320 422235 460620 506682 552744 562980 675576 690930 760023 844470 921240 1013364 1125960 1266705 1381860 1520046 1688940 2026728 2533410 2763720 3040092 3377880 3800115 5066820 6080184 7600230 10133640 15200460 30400920
• Sum of all divisors σ(n): 111600720
• Sum of proper divisors (its aliquot sum) s(n): 81199800
• 30400920 is an abundant number, because the sum of its proper divisors (81199800) is greater than itself. Its abundance is 50798880

Bases of 30400920

• Binary: 1110011111110000110011000₂
• Hexadecimal: 0x1CFE198
• Base-36: I3LI0

Squares and roots of 30400920

• 30400920 squared (30400920²) is 924215936846400
• 30400920 cubed (30400920³) is 28097014758792458688000
• The square root of 30400920 is 5513.7029299739
• The cube root of 30400920 is 312.1012984683

Scales and comparisons

• 30,400,920 seconds is equal to 50 weeks, 1 day, 20 hours, 42 minutes.
• To count from 1 to 30,400,920 would take you about twenty-three 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 30400920 cubic inches would be around 26 feet tall.

Recreational maths with 30400920

• 30400920 backwards is 02900403
• 30400920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30400920's digits is 18
• More coming soon!