128221155816

Names of 128221155816

• Cardinal: 128221155816 can be written as One hundred twenty-eight billion, two hundred twenty-one million, one hundred fifty-five thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.28221155816 × 10¹¹

Factors of 128221155816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 414

Divisors of 128221155816

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 12 13 24 26 39 52 78 89 104 156 169 178 267 307 312 338 356 507 534 614 676 712 921 1014 1068 1157 1228 1352 1842 2028 2136 2197 2314 2456 3471 3684 3991 4056 4394 4628 6591 6942 7368 7921 7982 8788 9256 11973 13182 13884 15041 15842 15964 17576 23763 23946 26364 27323 27768 30082 31684 31928 45123 47526 47892 51883 52728 54646 60164 63368 81969 90246 95052 95784 102973 103766 109292 120328 155649 163938 180492 190104 195533 205946 207532 218584 308919 311298 327876 355199 360984 391066 411892 415064 586599 617838 622596 655752 674479 710398 782132 823784 1065597 1173198 1235676 1245192 1338649 1348958 1420796 1564264 2023437 2131194 2346396 2431747 2471352 2677298 2697916 2841592 4015947 4046874 4262388 4617587 4692792 4863494 5354596 5395832 7295241 8031894 8093748 8524776 9235174 9726988 10709192 13852761 14590482 16063788 16187496 17402437 18470348 19453976 27705522 29180964 31612711 32127576 34804874 36940696 52207311 55411044 58361928 60028631 63225422 69609748 94838133 104414622 110822088 120057262 126450844 139219496 180085893 189676266 208829244 240114524 252901688 360171786 379352532 410965243 417658488 480229048 720343572 758705064 821930486 1232895729 1440687144 1643860972 2465791458 3287721944 4931582916 5342548159 9863165832 10685096318 16027644477 21370192636 32055288954 42740385272 64110577908 128221155816
• Sum of all divisors σ(n): 352343006400
• Sum of proper divisors (its aliquot sum) s(n): 224121850584
• 128221155816 is an abundant number, because the sum of its proper divisors (224121850584) is greater than itself. Its abundance is 95900694768

Bases of 128221155816

• Binary: 1110111011010100100111001000111101000₂
• Hexadecimal: 0x1DDA9391E8
• Base-36: 1MWJKD0O

Squares and roots of 128221155816

• 128221155816 squared (128221155816²) is 16440664798790950625856
• 128221155816 cubed (128221155816³) is 2108041042884400768608644894378496
• The square root of 128221155816 is 358079.8176608115
• The cube root of 128221155816 is 5042.5850177691

Scales and comparisons

• 128,221,155,816 seconds is equal to 4,077 years, 1 week, 6 days, 3 hours, 43 minutes, 36 seconds.
• To count from 1 to 128,221,155,816 would take you about eight thousand, one hundred fifty-four 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 128221155816 cubic inches would be around 420.2 feet tall.

Recreational maths with 128221155816

• 128221155816 backwards is 618551122821
• The number of decimal digits it has is: 12
• The sum of 128221155816's digits is 42
• More coming soon!