1231985916

Names of 1231985916

• Cardinal: 1231985916 can be written as One billion, two hundred thirty-one million, nine hundred eighty-five thousand, nine hundred sixteen.

Scientific notation

• Scientific notation: 1.231985916 × 10⁹

Factors of 1231985916

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 661

Divisors of 1231985916

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 19 21 27 28 36 38 42 54 57 63 76 84 108 114 126 133 171 189 199 228 252 266 342 378 398 399 431 513 532 597 684 756 796 798 862 1026 1194 1197 1293 1393 1596 1724 1791 2052 2388 2394 2586 2786 3017 3582 3591 3781 3879 4179 4788 5172 5373 5572 6034 7164 7182 7562 7758 8189 8358 9051 10746 11343 11637 12068 12537 14364 15124 15516 16378 16716 18102 21492 22686 23274 24567 25074 26467 27153 32756 34029 36204 37611 45372 46548 49134 50148 52934 54306 57323 68058 73701 75222 79401 81459 85769 98268 102087 105868 108612 114646 136116 147402 150444 158802 162918 171538 171969 204174 221103 229292 238203 257307 294804 317604 325836 343076 343938 408348 442206 476406 514614 515907 600383 687876 714609 771921 884412 952812 1029228 1031814 1200766 1429218 1543842 1547721 1629611 1801149 2063628 2315763 2401532 2858436 3087684 3095442 3259222 3602298 4631526 4888833 5403447 6190884 6518444 7204596 9263052 9777666 10806894 11407277 14666499 16210341 19555332 21613788 22814554 29332998 32420682 34221831 43999497 45629108 58665996 64841364 68443662 87998994 102665493 136887324 175997988 205330986 307996479 410661972 615992958 1231985916
• Sum of all divisors σ(n): 3870720000
• Sum of proper divisors (its aliquot sum) s(n): 2638734084
• 1231985916 is an abundant number, because the sum of its proper divisors (2638734084) is greater than itself. Its abundance is 1406748168

Bases of 1231985916

• Binary: 1001001011011101001110011111100₂
• Hexadecimal: 0x496E9CFC
• Base-36: KDHQF0

Squares and roots of 1231985916

• 1231985916 squared (1231985916²) is 1517789297222359056
• 1231985916 cubed (1231985916³) is 1869895037633484277287055296
• The square root of 1231985916 is 35099.6569214003
• The cube root of 1231985916 is 1072.0175971251

Scales and comparisons

• 1,231,985,916 seconds is equal to 39 years, 9 weeks, 2 hours, 18 minutes, 36 seconds.
• To count from 1 to 1,231,985,916 would take you about seventy-eight 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 1231985916 cubic inches would be around 89.3 feet tall.

Recreational maths with 1231985916

• 1231985916 backwards is 6195891321
• The number of decimal digits it has is: 10
• The sum of 1231985916's digits is 45
• More coming soon!