13072800

Names of 13072800

• Cardinal: 13072800 can be written as Thirteen million, seventy-two thousand, eight hundred.

Scientific notation

• Scientific notation: 1.30728 × 10⁷

Factors of 13072800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 442

Divisors of 13072800

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 32 39 40 48 50 52 60 65 75 78 80 96 100 104 120 130 150 156 160 195 200 208 240 260 300 312 325 390 400 416 419 480 520 600 624 650 780 800 838 975 1040 1200 1248 1257 1300 1560 1676 1950 2080 2095 2400 2514 2600 3120 3352 3900 4190 5028 5200 5447 6240 6285 6704 7800 8380 10056 10400 10475 10894 12570 13408 15600 16341 16760 20112 20950 21788 25140 27235 31200 31425 32682 33520 40224 41900 43576 50280 54470 62850 65364 67040 81705 83800 87152 100560 108940 125700 130728 136175 163410 167600 174304 201120 217880 251400 261456 272350 326820 335200 408525 435760 502800 522912 544700 653640 817050 871520 1005600 1089400 1307280 1634100 2178800 2614560 3268200 4357600 6536400 13072800
• Sum of all divisors σ(n): 45934560
• Sum of proper divisors (its aliquot sum) s(n): 32861760
• 13072800 is an abundant number, because the sum of its proper divisors (32861760) is greater than itself. Its abundance is 19788960

Bases of 13072800

• Binary: 110001110111100110100000₂
• Hexadecimal: 0xC779A0
• Base-36: 7S71C

Squares and roots of 13072800

• 13072800 squared (13072800²) is 170898099840000
• 13072800 cubed (13072800³) is 2234116679588352000000
• The square root of 13072800 is 3615.6327247109
• The cube root of 13072800 is 235.5715678105

Scales and comparisons

• 13,072,800 seconds is equal to 21 weeks, 4 days, 7 hours, 20 minutes.
• To count from 1 to 13,072,800 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 13072800 cubic inches would be around 19.6 feet tall.

Recreational maths with 13072800

• 13072800 backwards is 00827031
• The number of decimal digits it has is: 8
• The sum of 13072800's digits is 21
• More coming soon!