128444137472

Names of 128444137472

• Cardinal: 128444137472 can be written as One hundred twenty-eight billion, four hundred forty-four million, one hundred thirty-seven thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.28444137472 × 10¹¹

Factors of 128444137472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 2866

Divisors of 128444137472

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 512 686 784 896 1024 1372 1568 1792 2048 2744 2857 3136 3584 4096 5488 5714 6272 7168 8192 10976 11428 12544 14336 16384 19999 21952 22856 25088 28672 32768 39998 43904 45712 50176 57344 65536 79996 87808 91424 100352 114688 131072 139993 159992 175616 182848 200704 229376 279986 319984 351232 365696 401408 458752 559972 639968 702464 731392 802816 917504 979951 1119944 1279936 1404928 1462784 1605632 1959902 2239888 2559872 2809856 2925568 3211264 3919804 4479776 5119744 5619712 5851136 6422528 7839608 8959552 10239488 11239424 11702272 15679216 17919104 20478976 22478848 23404544 31358432 35838208 40957952 44957696 46809088 62716864 71676416 81915904 93618176 125433728 143352832 163831808 187236352 250867456 286705664 327663616 374472704 501734912 573411328 655327232 1003469824 1146822656 1310654464 2006939648 2293645312 2621308928 4013879296 4587290624 8027758592 9174581248 16055517184 18349162496 32111034368 64222068736 128444137472
• Sum of all divisors σ(n): 299681877600
• Sum of proper divisors (its aliquot sum) s(n): 171237740128
• 128444137472 is an abundant number, because the sum of its proper divisors (171237740128) is greater than itself. Its abundance is 42793602656

Bases of 128444137472

• Binary: 1110111100111110111100000000000000000₂
• Hexadecimal: 0x1DE7DE0000
• Base-36: 1N08BMRK

Squares and roots of 128444137472

• 128444137472 squared (128444137472²) is 16497896450926034550784
• 128444137472 cubed (128444137472³) is 2119058079741564483544721861378048
• The square root of 128444137472 is 358391.0398879971
• The cube root of 128444137472 is 5045.5064098107

Scales and comparisons

• 128,444,137,472 seconds is equal to 4,084 years, 6 weeks, 3 days, 23 hours, 4 minutes, 32 seconds.
• To count from 1 to 128,444,137,472 would take you about eight thousand, one hundred sixty-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 128444137472 cubic inches would be around 420.5 feet tall.

Recreational maths with 128444137472

• 128444137472 backwards is 274731444821
• The number of decimal digits it has is: 12
• The sum of 128444137472's digits is 47
• More coming soon!