12904840

Names of 12904840

• Cardinal: 12904840 can be written as Twelve million, nine hundred four thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.290484 × 10⁷

Factors of 12904840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 126

Divisors of 12904840

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 13 20 23 26 40 46 52 65 83 92 104 115 130 166 169 184 230 260 299 332 338 415 460 520 598 664 676 830 845 920 1079 1196 1352 1495 1660 1690 1909 2158 2392 2990 3320 3380 3818 3887 4316 5395 5980 6760 7636 7774 8632 9545 10790 11960 14027 15272 15548 19090 19435 21580 24817 28054 31096 38180 38870 43160 49634 56108 70135 76360 77740 99268 112216 124085 140270 155480 198536 248170 280540 322621 496340 561080 645242 992680 1290484 1613105 2580968 3226210 6452420 12904840
• Sum of all divisors σ(n): 33203520
• Sum of proper divisors (its aliquot sum) s(n): 20298680
• 12904840 is an abundant number, because the sum of its proper divisors (20298680) is greater than itself. Its abundance is 7393840

Bases of 12904840

• Binary: 110001001110100110001000₂
• Hexadecimal: 0xC4E988
• Base-36: 7OLFS

Squares and roots of 12904840

• 12904840 squared (12904840²) is 166534895425600
• 12904840 cubed (12904840³) is 2149106179884099904000
• The square root of 12904840 is 3592.3307197417
• The cube root of 12904840 is 234.5583374969

Scales and comparisons

• 12,904,840 seconds is equal to 21 weeks, 2 days, 8 hours, 40 minutes, 40 seconds.
• To count from 1 to 12,904,840 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 12904840 cubic inches would be around 19.5 feet tall.

Recreational maths with 12904840

• 12904840 backwards is 04840921
• The number of decimal digits it has is: 8
• The sum of 12904840's digits is 28
• More coming soon!