128997068928

Names of 128997068928

• Cardinal: 128997068928 can be written as One hundred twenty-eight billion, nine hundred ninety-seven million, sixty-eight thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28997068928 × 10¹¹

Factors of 128997068928

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 988

Divisors of 128997068928

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 61 64 73 78 84 91 96 104 112 122 128 146 156 168 182 183 192 208 219 224 244 273 292 312 336 364 366 384 416 427 438 448 488 511 546 584 624 672 728 732 793 829 832 854 876 896 949 976 1022 1092 1168 1248 1281 1344 1456 1464 1533 1586 1658 1664 1708 1752 1898 1952 2044 2184 2336 2379 2487 2496 2562 2688 2847 2912 2928 3066 3172 3316 3416 3504 3796 3904 4088 4368 4453 4672 4758 4974 4992 5124 5551 5694 5803 5824 5856 6132 6344 6632 6643 6832 7008 7592 7808 8176 8736 8906 9344 9516 9948 10248 10777 11102 11388 11606 11648 11712 12264 12688 13264 13286 13359 13664 14016 15184 16352 16653 17409 17472 17812 19032 19896 19929 20496 21554 22204 22776 23212 23424 24528 25376 26528 26572 26718 27328 28032 30368 31171 32331 32704 33306 34818 34944 35624 38064 39792 39858 40992 43108 44408 45552 46424 49056 50569 50752 53056 53144 53436 54656 57889 60517 60736 62342 64662 65408 66612 69636 71248 75439 76128 79584 79716 81984 86216 88816 91104 92848 93513 98112 101138 101504 106112 106288 106872 115778 121034 121472 124684 129324 133224 139272 142496 150878 151707 152256 159168 159432 163968 172432 173667 177632 181551 182208 185696 187026 196224 202276 212576 213744 226317 231556 242068 249368 258648 266448 278544 284992 301756 303414 304512 318336 318864 344864 347334 353983 355264 363102 364416 371392 374052 404552 405223 423619 425152 427488 452634 463112 484136 498736 517296 532896 557088 569984 603512 606828 637728 657397 689728 694668 707966 710528 726204 742784 748104 786721 809104 810446 847238 850304 854976 905268 926224 968272 997472 1034592 1061949 1065792 1114176 1207024 1213656 1215669 1270857 1275456 1314794 1379456 1389336 1415932 1452408 1496208 1573442 1618208 1620892 1694476 1709952 1810536 1852448 1936544 1972191 1994944 2069184 2123898 2131584 2228352 2360163 2414048 2427312 2431338 2541714 2550912 2629588 2778672 2831864 2904816 2992416 3146884 3236416 3241784 3388952 3621072 3691537 3704896 3873088 3944382 3989888 4138368 4247796 4601779 4720326 4828096 4854624 4862676 5083428 5259176 5507047 5557344 5663728 5809632 5984832 6293768 6472832 6483568 6777904 7242144 7383074 7409792 7746176 7888764 8495592 9203558 9440652 9656192 9709248 9725352 10166856 10518352 11014094 11074611 11114688 11327456 11619264 11969664 12587536 12967136 13555808 13805337 14484288 14766148 15777528 16521141 16991184 18407116 18881304 19418496 19450704 20333712 21036704 22028188 22149222 22229376 22654912 23238528 25175072 25840759 25934272 27111616 27610674 28968576 29532296 31555056 33042282 33982368 36814232 37762608 38901408 40667424 42073408 44056376 44298444 45309824 47989981 50350144 51681518 51868544 54223232 55221348 59064592 63110112 66084564 67964736 73628464 75525216 77522277 77802816 81334848 84146816 88112752 88596888 95979962 100700288 103363036 110442696 118129184 126220224 132169128 135929472 143969943 147256928 151050432 155044554 155605632 162669696 176225504 177193776 191959924 206726072 220885392 236258368 252440448 264338256 287939886 294513856 302100864 310089108 335929867 352451008 354387552 383919848 413452144 441770784 472516736 528676512 575879772 589027712 620178216 671859734 704902016 708775104 767839696 826904288 883541568 1007789601 1057353024 1151759544 1240356432 1343719468 1417550208 1535679392 1653808576 1767083136 2015579202 2114706048 2303519088 2480712864 2687438936 3071358784 3307617152 4031158404 4607038176 4961425728 5374877872 6142717568 8062316808 9214076352 9922851456 10749755744 16124633616 18428152704 21499511488 32249267232 42999022976 64498534464 128997068928
• Sum of all divisors σ(n): 435030489600
• Sum of proper divisors (its aliquot sum) s(n): 306033420672
• 128997068928 is an abundant number, because the sum of its proper divisors (306033420672) is greater than itself. Its abundance is 177036351744

Bases of 128997068928

• Binary: 1111000001000110100110001000010000000₂
• Hexadecimal: 0x1E08D31080
• Base-36: 1N9DIVEO

Squares and roots of 128997068928

• 128997068928 squared (128997068928²) is 16640243792015183069184
• 128997068928 cubed (128997068928³) is 2146542675417306666398067040714752
• The square root of 128997068928 is 359161.6195085439
• The cube root of 128997068928 is 5052.7360780675

Scales and comparisons

• 128,997,068,928 seconds is equal to 4,101 years, 36 weeks, 5 days, 15 hours, 8 minutes, 48 seconds.
• To count from 1 to 128,997,068,928 would take you about eight thousand, two hundred 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 128997068928 cubic inches would be around 421.1 feet tall.

Recreational maths with 128997068928

• 128997068928 backwards is 829860799821
• The number of decimal digits it has is: 12
• The sum of 128997068928's digits is 69
• More coming soon!