1261221985431680

Names of 1261221985431680

• Cardinal: 1261221985431680 can be written as One quadrillion, two hundred sixty-one trillion, two hundred twenty-one billion, nine hundred eighty-five million, four hundred thirty-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.26122198543168 × 10¹⁵

Factors of 1261221985431680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1488

Divisors of 1261221985431680

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 151 160 212 265 302 320 424 530 604 640 755 848 1060 1208 1277 1510 1696 2120 2416 2554 3020 3392 4240 4832 5108 6040 6385 6784 8003 8480 9664 10216 12080 12770 16006 16960 19328 20432 22801 24160 25540 32012 33920 40015 40864 45602 48320 51080 64024 67681 80030 81728 91204 96640 102160 114005 128048 135362 160060 163456 182408 192827 204320 228010 256096 270724 320120 338405 364816 385654 408640 456020 512192 541448 640240 676810 729632 771308 817280 912040 964135 1024384 1082896 1208453 1280480 1353620 1459264 1542616 1630729 1824080 1928270 2165792 2416906 2560960 2707240 2918528 3085232 3261458 3648160 3856540 4331584 4833812 5121920 5414480 6042265 6170464 6522916 7296320 7713080 8153645 8663168 9667624 10219831 10828960 12084530 12340928 13045832 14592640 15426160 16307290 19335248 20439662 21657920 24169060 24681856 26091664 29116877 30852320 32614580 38670496 40879324 43315840 48338120 51099155 52183328 58233754 61704640 65229160 77340992 81758648 86428637 96676240 102198310 104366656 116467508 123409280 130458320 145584385 154681984 163517296 172857274 193352480 204396620 208733312 232935016 246240079 260916640 291168770 327034592 345714548 386704960 408793240 432143185 465870032 492480158 521833280 582337540 654069184 691429096 773409920 817586480 864286370 931740064 984960316 1043666560 1164675080 1231200395 1308138368 1382858192 1543194481 1635172960 1728572740 1863480128 1969920632 2329350160 2462400790 2765716384 3086388962 3270345920 3457145480 3726960256 3939841264 4658700320 4924801580 5531432768 6172777924 6540691840 6914290960 7715972405 7879682528 9317400640 9849603160 11062865536 12345555848 13050724187 13828581920 15431944810 15759365056 18634801280 19699206320 24691111696 26101448374 27657163840 30863889620 31518730112 37182251929 39398412640 49382223392 52202896748 55314327680 61727779240 65253620935 74364503858 78796825280 98764446784 104405793496 123455558480 130507241870 148729007716 157593650560 185911259645 197528893568 208811586992 246911116960 261014483740 297458015432 371822519290 417623173984 493822233920 522028967480 594916030864 743645038580 835246347968 987644467840 1044057934960 1189832061728 1487290077160 1670492695936 1970659352237 2088115869920 2379664123456 2974580154320 3941318704474 4176231739840 4759328246912 5949160308640 7882637408948 8352463479680 9853296761185 11898320617280 15765274817896 19706593522370 23796641234560 31530549635792 39413187044740 63061099271584 78826374089480 126122198543168 157652748178960 252244397086336 315305496357920 630610992715840 1261221985431680
• Sum of all divisors σ(n): 3094900310158020
• Sum of proper divisors (its aliquot sum) s(n): 1833678324726340
• 1261221985431680 is an abundant number, because the sum of its proper divisors (1833678324726340) is greater than itself. Its abundance is 572456339294660

Bases of 1261221985431680

• Binary: 100011110110001001100100000011011001011000010000000₂
• Hexadecimal: 0x47B13206CB080
• Base-36: CF2DDQC7SW

Squares and roots of 1261221985431680

• 1261221985431680 squared (1261221985431680²) is 1590680896536228838155947622400
• 1261221985431680 cubed (1261221985431680³) is 2006201718517667289090047264734517933637632000
• The square root of 1261221985431680 is 35513687.2970363357
• The cube root of 1261221985431680 is 108043.1350738973

Scales and comparisons

• 1,261,221,985,431,680 seconds is equal to 40,102,957 years, 47 weeks, 6 days, 5 hours, 41 minutes, 20 seconds.
• To count from 1 to 1,261,221,985,431,680 would take you about one hundred twenty million, three hundred eight thousand, eight hundred seventy-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 1261221985431680 cubic inches would be around 9003.6 feet tall.

Recreational maths with 1261221985431680

• 1261221985431680 backwards is 0861345891221621
• The number of decimal digits it has is: 16
• The sum of 1261221985431680's digits is 59
• More coming soon!