128835751680

Names of 128835751680

• Cardinal: 128835751680 can be written as One hundred twenty-eight billion, eight hundred thirty-five million, seven hundred fifty-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2883575168 × 10¹¹

Factors of 128835751680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 30366

Divisors of 128835751680

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 373 384 480 576 640 720 746 768 960 1119 1152 1280 1440 1492 1865 1920 2238 2304 2880 2984 3357 3730 3840 4476 5595 5760 5968 6714 7460 8952 11190 11520 11936 13428 14920 16785 17904 22380 23872 26856 29840 29983 33570 35808 44760 47744 53712 59680 59966 67140 71616 89520 89949 95488 107424 119360 119932 134280 143232 149915 179040 179898 214848 238720 239864 268560 269847 286464 299830 358080 359796 429696 449745 477440 479728 537120 539694 599660 716160 719592 859392 899490 959456 1074240 1079388 1199320 1349235 1432320 1439184 1798980 1918912 2148480 2158776 2398640 2698470 2878368 3597960 3837824 4296960 4317552 4797280 5396940 5756736 7195920 7675648 8635104 9594560 10793880 11183659 11513472 14391840 17270208 19189120 21587760 22367318 23026944 28783680 33550977 34540416 38378240 43175520 44734636 55918295 57567360 67101954 69080832 86351040 89469272 100652931 111836590 115134720 134203908 167754885 172702080 178938544 201305862 223673180 268407816 335509770 345404160 357877088 402611724 447346360 503264655 536815632 671019540 715754176 805223448 894692720 1006529310 1073631264 1342039080 1431508352 1610446896 1789385440 2013058620 2147262528 2684078160 2863016704 3220893792 3578770880 4026117240 4294525056 5368156320 6441787584 7157541760 8052234480 8589050112 10736312640 12883575168 14315083520 16104468960 21472625280 25767150336 32208937920 42945250560 64417875840 128835751680
• Sum of all divisors σ(n): 446968249728
• Sum of proper divisors (its aliquot sum) s(n): 318132498048
• 128835751680 is an abundant number, because the sum of its proper divisors (318132498048) is greater than itself. Its abundance is 189296746368

Bases of 128835751680

• Binary: 1110111111111001101011000111100000000₂
• Hexadecimal: 0x1DFF358F00
• Base-36: 1N6PHA80

Squares and roots of 128835751680

• 128835751680 squared (128835751680²) is 16598650910950622822400
• 128835751680 cubed (128835751680³) is 2138499666986240234688067141632000
• The square root of 128835751680 is 358936.9745233835
• The cube root of 128835751680 is 5050.6289669173

Scales and comparisons

• 128,835,751,680 seconds is equal to 4,096 years, 30 weeks, 12 hours, 48 minutes.
• To count from 1 to 128,835,751,680 would take you about eight thousand, one hundred ninety-three 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 128835751680 cubic inches would be around 420.9 feet tall.

Recreational maths with 128835751680

• 128835751680 backwards is 086157538821
• The number of decimal digits it has is: 12
• The sum of 128835751680's digits is 54
• More coming soon!