18315389643640128

Names of 18315389643640128

• Cardinal: 18315389643640128 can be written as Eighteen quadrillion, three hundred fifteen trillion, three hundred eighty-nine billion, six hundred forty-three million, six hundred forty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8315389643640128 × 10¹⁶

Factors of 18315389643640128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2349631006

Divisors of 18315389643640128

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 144 156 192 208 216 234 288 312 347 351 416 432 468 576 624 694 702 832 864 936 1041 1248 1388 1404 1728 1872 2082 2496 2776 2808 3123 3744 4164 4511 5552 5616 6246 7488 8328 9022 9369 11104 11232 12492 13533 16656 18044 18738 22208 22464 24984 27066 33312 36088 37476 40599 49968 54132 66624 72176 74952 81198 99936 108264 121797 144352 149904 162396 199872 216528 243594 288704 299808 324792 433056 487188 599616 649584 866112 974376 1299168 1948752 2598336 3897504 7795008 2349630641 4699261282 7048891923 9398522564 14097783846 18797045128 21146675769 28195567692 30545198333 37594090256 42293351538 56391135384 61090396666 63440027307 75188180512 84586703076 91635594999 112782270768 122180793332 126880054614 150376361024 169173406152 183271189998 225564541536 244361586664 253760109228 274906784997 338346812304 366542379996 451129083072 488723173328 507520218456 549813569994 676693624608 733084759992 815321832427 824720354991 977446346656 1015040436912 1099627139988 1353387249216 1466169519984 1630643664854 1649440709982 1954892693312 2030080873824 2199254279976 2445965497281 2932339039968 3261287329708 3298881419964 4060161747648 4398508559952 4891930994562 5864678079936 6522574659416 6597762839928 7337896491843 8797017119904 9783861989124 10599183821551 13045149318832 13195525679856 14675792983686 17594034239808 19567723978248 21198367643102 22013689475529 26090298637664 26391051359712 29351585967372 31797551464653 39135447956496 42396735286204 44027378951058 52180597275328 52782102719424 58703171934744 63595102929306 78270895912992 84793470572408 88054757902116 95392654393959 117406343869488 127190205858612 156541791825984 169586941144816 176109515804232 190785308787918 234812687738976 254380411717224 286177963181877 339173882289632 352219031608464 381570617575836 469625375477952 508760823434448 572355926363754 678347764579264 704438063216928 763141235151672 1017521646868896 1144711852727508 1408876126433856 1526282470303344 2035043293737792 2289423705455016 3052564940606688 4578847410910032 6105129881213376 9157694821820064 18315389643640128
• Sum of all divisors σ(n): 58152794478145920
• Sum of proper divisors (its aliquot sum) s(n): 39837404834505792
• 18315389643640128 is an abundant number, because the sum of its proper divisors (39837404834505792) is greater than itself. Its abundance is 21522015190865664

Bases of 18315389643640128

• Binary: 1000001000100011011111111110101101000011100110101000000₂
• Hexadecimal: 0x4111BFF5A1CD40
• Base-36: 50C9HUGH5C0

Squares and roots of 18315389643640128

• 18315389643640128 squared (18315389643640128²) is 335453497798360054932198371856384
• 18315389643640128 cubed (18315389643640128³) is 6143961519498940229128765752363516476410595377152
• The square root of 18315389643640128 is 135334362.3904887209
• The cube root of 18315389643640128 is 263595.9424054759

Scales and comparisons

• 18,315,389,643,640,128 seconds is equal to 582,372,737 years, 23 weeks, 2 days, 28 minutes, 48 seconds.
• To count from 1 to 18,315,389,643,640,128 would take you about one billion, seven hundred forty-seven million, one hundred eighteen thousand, two hundred twelve 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 18315389643640128 cubic inches would be around 21966.3 feet tall.

Recreational maths with 18315389643640128

• 18315389643640128 backwards is 82104634698351381
• 18315389643640128 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18315389643640128's digits is 72
• More coming soon!