128797672640

Names of 128797672640

• Cardinal: 128797672640 can be written as One hundred twenty-eight billion, seven hundred ninety-seven million, six hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2879767264 × 10¹¹

Factors of 128797672640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 60689

Divisors of 128797672640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 73 80 91 104 112 130 140 146 160 182 208 224 260 280 292 320 364 365 416 448 455 511 520 560 584 728 730 832 910 949 1022 1040 1120 1168 1456 1460 1820 1898 2044 2080 2240 2336 2555 2912 2920 3640 3796 4088 4160 4672 4745 5110 5824 5840 6643 7280 7592 8176 9490 10220 11680 13286 14560 15184 16352 18980 20440 23360 26572 29120 30368 32704 33215 37960 40880 53144 60589 60736 66430 75920 81760 106288 121178 132860 151840 163520 212576 242356 265720 302945 303680 424123 425152 484712 531440 605890 787657 848246 969424 1062880 1211780 1575314 1696492 1938848 2120615 2125760 2423560 3150628 3392984 3877696 3938285 4241230 4422997 4847120 5513599 6301256 6785968 7876570 8482460 8845994 9694240 11027198 12602512 13571936 15753140 16964920 17691988 19388480 22054396 22114985 25205024 27143872 27567995 30960979 31506280 33929840 35383976 44108792 44229970 50410048 55135990 57498961 61921958 63012560 67859680 70767952 88217584 88459940 110271980 114997922 123843916 126025120 135719360 141535904 154804895 176435168 176919880 220543960 229995844 247687832 252050240 283071808 287494805 309609790 352870336 353839760 402492727 441087920 459991688 495375664 574989610 619219580 707679520 804985454 882175840 919983376 990751328 1149979220 1238439160 1415359040 1609970908 1764351680 1839966752 1981502656 2012463635 2299958440 2476878320 3219941816 3679933504 4024927270 4599916880 4953756640 6439883632 8049854540 9199833760 9907513280 12879767264 16099709080 18399667520 25759534528 32199418160 64398836320 128797672640
• Sum of all divisors σ(n): 382653479040
• Sum of proper divisors (its aliquot sum) s(n): 253855806400
• 128797672640 is an abundant number, because the sum of its proper divisors (253855806400) is greater than itself. Its abundance is 125058133760

Bases of 128797672640

• Binary: 1110111111100111100001000010011000000₂
• Hexadecimal: 0x1DFCF084C0
• Base-36: 1N62T48W

Squares and roots of 128797672640

• 128797672640 squared (128797672640²) is 16588840477480604569600
• 128797672640 cubed (128797672640³) is 2136604045295728199304628895744000
• The square root of 128797672640 is 358883.9264163275
• The cube root of 128797672640 is 5050.1313254091

Scales and comparisons

• 128,797,672,640 seconds is equal to 4,095 years, 19 weeks, 19 hours, 17 minutes, 20 seconds.
• To count from 1 to 128,797,672,640 would take you about eight thousand, one hundred ninety 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 128797672640 cubic inches would be around 420.8 feet tall.

Recreational maths with 128797672640

• 128797672640 backwards is 046276797821
• The number of decimal digits it has is: 12
• The sum of 128797672640's digits is 59
• More coming soon!