12478996440

Names of 12478996440

• Cardinal: 12478996440 can be written as Twelve billion, four hundred seventy-eight million, nine hundred ninety-six thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.247899644 × 10¹⁰

Factors of 12478996440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 730

Divisors of 12478996440

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 281 360 439 562 843 878 1124 1317 1405 1686 1756 2195 2248 2529 2634 2810 3372 3512 3951 4215 4390 5058 5268 5620 6585 6744 7902 8430 8780 10116 10536 11240 12645 13170 15804 16860 17560 19755 20232 25290 26340 31608 33720 39510 50580 52680 78961 79020 101160 123359 157922 158040 236883 246718 315844 370077 394805 473766 493436 616795 631688 710649 740154 789610 947532 986872 1110231 1184415 1233590 1421298 1480308 1579220 1850385 1895064 2220462 2368830 2467180 2842596 2960616 3158440 3553245 3700770 4440924 4737660 4934360 5551155 5685192 7106490 7401540 8881848 9475320 11102310 14212980 14803080 22204620 28425960 34663879 44409240 69327758 103991637 138655516 173319395 207983274 277311032 311974911 346638790 415966548 519958185 623949822 693277580 831933096 1039916370 1247899644 1386555160 1559874555 2079832740 2495799288 3119749110 4159665480 6239498220 12478996440
• Sum of all divisors σ(n): 40794296400
• Sum of proper divisors (its aliquot sum) s(n): 28315299960
• 12478996440 is an abundant number, because the sum of its proper divisors (28315299960) is greater than itself. Its abundance is 15836303520

Bases of 12478996440

• Binary: 1011100111110011100101111111011000₂
• Hexadecimal: 0x2E7CE5FD8
• Base-36: 5QDO7A0

Squares and roots of 12478996440

• 12478996440 squared (12478996440²) is 155725352149532673600
• 12478996440 cubed (12478996440³) is 1943296115091764581518081984000
• The square root of 12478996440 is 111709.4286083319
• The cube root of 12478996440 is 2319.4938228839

Scales and comparisons

• 12,478,996,440 seconds is equal to 396 years, 41 weeks, 1 day, 19 hours, 54 minutes.
• To count from 1 to 12,478,996,440 would take you about seven hundred ninety-three 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 12478996440 cubic inches would be around 193.3 feet tall.

Recreational maths with 12478996440

• 12478996440 backwards is 04469987421
• The number of decimal digits it has is: 11
• The sum of 12478996440's digits is 54
• More coming soon!