128397806208

Names of 128397806208

• Cardinal: 128397806208 can be written as One hundred twenty-eight billion, three hundred ninety-seven million, eight hundred six thousand, two hundred eight.

Scientific notation

• Scientific notation: 1.28397806208 × 10¹¹

Factors of 128397806208

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 7620

Divisors of 128397806208

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 84 96 98 101 108 112 126 128 144 147 168 189 192 196 202 216 224 252 288 294 303 336 378 384 392 404 432 441 448 504 576 588 606 672 707 756 784 808 864 882 896 909 1008 1152 1176 1212 1323 1344 1414 1512 1568 1616 1728 1764 1818 2016 2121 2352 2424 2646 2688 2727 2828 3024 3136 3232 3456 3528 3636 4032 4242 4704 4848 4949 5292 5454 5656 6048 6272 6363 6464 7056 7272 7507 8064 8484 9408 9696 9898 10584 10908 11312 12096 12726 12928 14112 14544 14847 15014 16968 18816 19089 19392 19796 21168 21816 22521 22624 24192 25452 28224 29088 29694 30028 33936 38178 38784 39592 42336 43632 44541 45042 45248 50904 52549 56448 58176 59388 60056 67563 67872 76356 79184 84672 87264 89082 90084 90496 101808 105098 116352 118776 120112 133623 135126 135744 152712 157647 158368 169344 174528 178164 180168 202689 203616 210196 237552 240224 267246 270252 271488 305424 315294 316736 349056 356328 360336 367843 405378 407232 420392 472941 475104 480448 534492 540504 610848 630588 633472 712656 720672 735686 758207 810756 814464 840784 945882 950208 960896 1068984 1081008 1103529 1221696 1261176 1418823 1425312 1441344 1471372 1516414 1621512 1681568 1891764 1900416 2137968 2162016 2207058 2274621 2443392 2522352 2837646 2850624 2882688 2942744 3032828 3243024 3310587 3363136 3783528 4275936 4324032 4414116 4549242 5044704 5307449 5675292 5701248 5885488 6065656 6486048 6621174 6726272 6823863 7567056 8551872 8648064 8828232 9098484 9931761 10089408 10614898 11350584 11770976 12131312 12972096 13242348 13647726 15134112 15922347 17103744 17656464 18196968 19863522 20178816 20471589 21229796 22701168 23541952 24262624 25944192 26484696 27295452 30268224 31844694 35312928 36393936 37152143 39727044 40943178 42459592 45402336 47083904 47767041 48525248 52969392 54590904 60536448 63689388 70625856 72787872 74304286 79454088 81886356 84919184 90804672 95534082 97050496 105938784 109181808 111456429 127378776 141251712 143301123 145575744 148608572 158908176 163772712 169838368 181609344 191068164 211877568 218363616 222912858 254757552 286602246 291151488 297217144 317816352 327545424 334369287 339676736 382136328 423755136 436727232 445825716 509515104 573204492 594434288 635632704 655090848 668738574 679353472 764272656 873454464 891651432 1003107861 1019030208 1146408984 1188868576 1271265408 1310181696 1337477148 1528545312 1783302864 2006215722 2038060416 2292817968 2377737152 2620363392 2674954296 3057090624 3566605728 4012431444 4585635936 4755474304 5349908592 6114181248 7133211456 8024862888 9171271872 10699817184 14266422912 16049725776 18342543744 21399634368 32099451552 42799268736 64198903104 128397806208
• Sum of all divisors σ(n): 445245422400
• Sum of proper divisors (its aliquot sum) s(n): 316847616192
• 128397806208 is an abundant number, because the sum of its proper divisors (316847616192) is greater than itself. Its abundance is 188449809984

Bases of 128397806208

• Binary: 1110111100101000110110000101010000000₂
• Hexadecimal: 0x1DE51B0A80
• Base-36: 1MZGQLC0

Squares and roots of 128397806208

• 128397806208 squared (128397806208²) is 16485996639027123339264
• 128397806208 cubed (128397806208³) is 2116765801603543912170532909350912
• The square root of 128397806208 is 358326.3961920751
• The cube root of 128397806208 is 5044.8996796351

Scales and comparisons

• 128,397,806,208 seconds is equal to 4,082 years, 33 weeks, 6 days, 17 hours, 16 minutes, 48 seconds.
• To count from 1 to 128,397,806,208 would take you about eight thousand, one hundred sixty-five 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 128397806208 cubic inches would be around 420.4 feet tall.

Recreational maths with 128397806208

• 128397806208 backwards is 802608793821
• 128397806208 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128397806208's digits is 54
• More coming soon!