13018920

Names of 13018920

• Cardinal: 13018920 can be written as Thirteen million, eighteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.301892 × 10⁷

Factors of 13018920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 175

Divisors of 13018920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 53 60 69 89 92 106 115 120 138 159 178 184 212 230 265 267 276 318 345 356 424 445 460 530 534 552 636 690 712 795 890 920 1060 1068 1219 1272 1335 1380 1590 1780 2047 2120 2136 2438 2670 2760 3180 3560 3657 4094 4717 4876 5340 6095 6141 6360 7314 8188 9434 9752 10235 10680 12190 12282 14151 14628 16376 18285 18868 20470 23585 24380 24564 28302 29256 30705 36570 37736 40940 47170 48760 49128 56604 61410 70755 73140 81880 94340 108491 113208 122820 141510 146280 188680 216982 245640 283020 325473 433964 542455 566040 650946 867928 1084910 1301892 1627365 2169820 2603784 3254730 4339640 6509460 13018920
• Sum of all divisors σ(n): 41990400
• Sum of proper divisors (its aliquot sum) s(n): 28971480
• 13018920 is an abundant number, because the sum of its proper divisors (28971480) is greater than itself. Its abundance is 15952560

Bases of 13018920

• Binary: 110001101010011100101000₂
• Hexadecimal: 0xC6A728
• Base-36: 7R1GO

Squares and roots of 13018920

• 13018920 squared (13018920²) is 169492277966400
• 13018920 cubed (13018920³) is 2206606407462324288000
• The square root of 13018920 is 3608.1740534515
• The cube root of 13018920 is 235.2474833561

Scales and comparisons

• 13,018,920 seconds is equal to 21 weeks, 3 days, 16 hours, 22 minutes.
• To count from 1 to 13,018,920 would take you about thirty-two 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 13018920 cubic inches would be around 19.6 feet tall.

Recreational maths with 13018920

• 13018920 backwards is 02981031
• 13018920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13018920's digits is 24
• More coming soon!