128440871328

Names of 128440871328

• Cardinal: 128440871328 can be written as One hundred twenty-eight billion, four hundred forty million, eight hundred seventy-one thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28440871328 × 10¹¹

Factors of 128440871328

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2482260

Divisors of 128440871328

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 49 56 66 77 84 88 96 98 112 132 147 154 168 176 196 224 231 264 294 308 336 352 392 462 528 539 588 616 672 784 924 1056 1078 1176 1232 1568 1617 1848 2156 2352 2464 3234 3696 4312 4704 6468 7392 8624 12936 17248 25872 51744 2482237 4964474 7446711 9928948 14893422 17375659 19857896 27304607 29786844 34751318 39715792 52126977 54609214 59573688 69502636 79431584 81913821 104253954 109218428 119147376 121629613 139005272 163827642 191132249 208507908 218436856 238294752 243259226 278010544 327655284 364888839 382264498 417015816 436873712 486518452 556021088 573396747 655310568 729777678 764528996 834031632 873747424 973036904 1146793494 1310621136 1337925743 1459555356 1529057992 1668063264 1946073808 2293586988 2621242272 2675851486 2919110712 3058115984 3892147616 4013777229 4587173976 5351702972 5838221424 6116231968 8027554458 9174347952 10703405944 11676442848 16055108916 18348695904 21406811888 32110217832 42813623776 64220435664 128440871328
• Sum of all divisors σ(n): 427858399584
• Sum of proper divisors (its aliquot sum) s(n): 299417528256
• 128440871328 is an abundant number, because the sum of its proper divisors (299417528256) is greater than itself. Its abundance is 170976656928

Bases of 128440871328

• Binary: 1110111100111101011000010100110100000₂
• Hexadecimal: 0x1DE7AC29A0
• Base-36: 1N06DMLC

Squares and roots of 128440871328

• 128440871328 squared (128440871328²) is 16497057427495852483584
• 128440871328 cubed (128440871328³) is 2118896430335621478097681776279552
• The square root of 128440871328 is 358386.4831826113
• The cube root of 128440871328 is 5045.4636428653

Scales and comparisons

• 128,440,871,328 seconds is equal to 4,084 years, 1 week, 1 day, 3 hours, 48 minutes, 48 seconds.
• To count from 1 to 128,440,871,328 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 128440871328 cubic inches would be around 420.5 feet tall.

Recreational maths with 128440871328

• 128440871328 backwards is 823178044821
• 128440871328 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128440871328's digits is 48
• More coming soon!