18142400

Names of 18142400

• Cardinal: 18142400 can be written as Eighteen million, one hundred forty-two thousand, four hundred.

Scientific notation

• Scientific notation: 1.81424 × 10⁷

Factors of 18142400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 76

Divisors of 18142400

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 23 25 29 32 34 40 46 50 58 64 68 80 85 92 100 115 116 136 145 160 170 184 200 230 232 272 290 320 340 368 391 400 425 460 464 493 544 575 580 667 680 725 736 782 800 850 920 928 986 1088 1150 1160 1334 1360 1450 1472 1564 1600 1700 1840 1856 1955 1972 2300 2320 2465 2668 2720 2900 3128 3335 3400 3680 3910 3944 4600 4640 4930 5336 5440 5800 6256 6670 6800 7360 7820 7888 9200 9280 9775 9860 10672 11339 11600 12325 12512 13340 13600 15640 15776 16675 18400 19550 19720 21344 22678 23200 24650 25024 26680 27200 31280 31552 33350 36800 39100 39440 42688 45356 46400 49300 53360 56695 62560 66700 78200 78880 90712 98600 106720 113390 125120 133400 156400 157760 181424 197200 213440 226780 266800 283475 312800 362848 394400 453560 533600 566950 625600 725696 788800 907120 1067200 1133900 1814240 2267800 3628480 4535600 9071200 18142400
• Sum of all divisors σ(n): 51023520
• Sum of proper divisors (its aliquot sum) s(n): 32881120
• 18142400 is an abundant number, because the sum of its proper divisors (32881120) is greater than itself. Its abundance is 14738720

Bases of 18142400

• Binary: 1000101001101010011000000₂
• Hexadecimal: 0x114D4C0
• Base-36: ASURK

Squares and roots of 18142400

• 18142400 squared (18142400²) is 329146677760000
• 18142400 cubed (18142400³) is 5971510686593024000000
• The square root of 18142400 is 4259.3896276345
• The cube root of 18142400 is 262.7634241467

Scales and comparisons

• 18,142,400 seconds is equal to 29 weeks, 6 days, 23 hours, 33 minutes, 20 seconds.
• To count from 1 to 18,142,400 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 18142400 cubic inches would be around 21.9 feet tall.

Recreational maths with 18142400

• 18142400 backwards is 00424181
• 18142400 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18142400's digits is 20
• More coming soon!