12815006920

Names of 12815006920

• Cardinal: 12815006920 can be written as Twelve billion, eight hundred fifteen million, six thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.281500692 × 10¹⁰

Factors of 12815006920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2291

Divisors of 12815006920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 20 31 40 62 67 73 124 134 146 155 248 268 292 310 335 365 536 584 620 670 730 1240 1340 1460 2077 2113 2263 2680 2920 4154 4226 4526 4891 8308 8452 9052 9782 10385 10565 11315 16616 16904 18104 19564 20770 21130 22630 24455 39128 41540 42260 45260 48910 65503 83080 84520 90520 97820 131006 141571 151621 154249 195640 262012 283142 303242 308498 327515 524024 566284 606484 616996 655030 707855 758105 771245 1132568 1212968 1233992 1310060 1415710 1516210 1542490 2620120 2831420 3032420 3084980 4388701 4781719 5662840 6064840 6169960 8777402 9563438 10334683 17554804 19126876 20669366 21943505 23908595 35109608 38253752 41338732 43887010 47817190 51673415 82677464 87774020 95634380 103346830 175548040 191268760 206693660 320375173 413387320 640750346 1281500692 1601875865 2563001384 3203751730 6407503460 12815006920
• Sum of all divisors σ(n): 30636426240
• Sum of proper divisors (its aliquot sum) s(n): 17821419320
• 12815006920 is an abundant number, because the sum of its proper divisors (17821419320) is greater than itself. Its abundance is 5006412400

Bases of 12815006920

• Binary: 1011111011110101010111110011001000₂
• Hexadecimal: 0x2FBD57CC8
• Base-36: 5VXQ2MG

Squares and roots of 12815006920

• 12815006920 squared (12815006920²) is 164224402359647886400
• 12815006920 cubed (12815006920³) is 2104536852671751992979373888000
• The square root of 12815006920 is 113203.3874051479
• The cube root of 12815006920 is 2340.1280106267

Scales and comparisons

• 12,815,006,920 seconds is equal to 407 years, 24 weeks, 5 days, 20 hours, 8 minutes, 40 seconds.
• To count from 1 to 12,815,006,920 would take you about eight hundred fourteen years!

  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 12815006920 cubic inches would be around 195 feet tall.

Recreational maths with 12815006920

• 12815006920 backwards is 02960051821
• The number of decimal digits it has is: 11
• The sum of 12815006920's digits is 34
• More coming soon!