18099040

Names of 18099040

• Cardinal: 18099040 can be written as Eighteen million, ninety-nine thousand and forty.

Scientific notation

• Scientific notation: 1.809904 × 10⁷

Factors of 18099040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 168

Divisors of 18099040

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 40 41 62 80 82 89 124 155 160 164 178 205 248 310 328 356 410 445 496 620 656 712 820 890 992 1240 1271 1312 1424 1640 1780 2480 2542 2759 2848 3280 3560 3649 4960 5084 5518 6355 6560 7120 7298 10168 11036 12710 13795 14240 14596 18245 20336 22072 25420 27590 29192 36490 40672 44144 50840 55180 58384 72980 88288 101680 110360 113119 116768 145960 203360 220720 226238 291920 441440 452476 565595 583840 904952 1131190 1809904 2262380 3619808 4524760 9049520 18099040
• Sum of all divisors σ(n): 45722880
• Sum of proper divisors (its aliquot sum) s(n): 27623840
• 18099040 is an abundant number, because the sum of its proper divisors (27623840) is greater than itself. Its abundance is 9524800

Bases of 18099040

• Binary: 1000101000010101101100000₂
• Hexadecimal: 0x1142B60
• Base-36: ARXB4

Squares and roots of 18099040

• 18099040 squared (18099040²) is 327575248921600
• 18099040 cubed (18099040³) is 5928797533241995264000
• The square root of 18099040 is 4254.2966516217
• The cube root of 18099040 is 262.5539239181

Scales and comparisons

• 18,099,040 seconds is equal to 29 weeks, 6 days, 11 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,099,040 would take you about forty-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 18099040 cubic inches would be around 21.9 feet tall.

Recreational maths with 18099040

• 18099040 backwards is 04099081
• 18099040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18099040's digits is 31
• More coming soon!