129328878672

Names of 129328878672

• Cardinal: 129328878672 can be written as One hundred twenty-nine billion, three hundred twenty-eight million, eight hundred seventy-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.29328878672 × 10¹¹

Factors of 129328878672

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3694

Divisors of 129328878672

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 31 36 38 42 48 56 57 61 62 63 72 76 84 93 112 114 122 124 126 133 144 152 168 171 183 186 217 228 244 248 252 266 279 304 336 342 366 372 399 427 434 456 488 496 504 532 549 558 589 651 684 732 744 798 854 868 912 976 1008 1064 1098 1116 1159 1178 1197 1281 1302 1368 1464 1488 1596 1708 1736 1767 1891 1953 2128 2196 2232 2318 2356 2394 2562 2604 2736 2928 3192 3416 3472 3477 3534 3571 3782 3843 3906 4123 4392 4464 4636 4712 4788 5124 5208 5301 5673 6384 6832 6954 7068 7142 7564 7686 7812 8113 8246 8784 9272 9424 9576 10248 10416 10431 10602 10713 11346 12369 13237 13908 14136 14284 15128 15372 15624 16226 16492 17019 18544 19152 20496 20862 21204 21426 22692 24339 24738 24997 26474 27816 28272 28568 30256 30744 31248 32139 32452 32984 34038 35929 37107 39711 41724 42408 42852 45384 48678 49476 49994 52948 55632 57136 61488 64278 64904 65968 67849 68076 71858 73017 74214 74991 79422 83448 84816 85704 90768 97356 98952 99988 105896 107787 110701 119133 128556 129808 135698 136152 143716 146034 148428 149982 158844 166896 171408 194712 197904 199976 203547 211792 215574 217831 221402 224973 238266 251503 257112 271396 272304 287432 292068 296856 299964 317688 323361 332103 389424 399952 407094 431148 435662 442804 449946 474943 476532 503006 514224 542792 574864 584136 593712 599928 610641 635376 646722 653493 664206 754509 774907 814188 862296 871324 885608 899892 949886 953064 996309 1006012 1085584 1168272 1199856 1221282 1293444 1306986 1328412 1424829 1509018 1524817 1549814 1628376 1724592 1742648 1771216 1799784 1899772 1906128 1960479 1992618 2012024 2103319 2263527 2324721 2442564 2586888 2613972 2656824 2849658 3018036 3049634 3099628 3256752 3485296 3599568 3799544 3920958 3985236 4024048 4138789 4206638 4274487 4527054 4574451 4649442 4885128 5173776 5227944 5313648 5699316 6036072 6099268 6199256 6309957 6752761 6974163 7599088 7841916 7970472 8277578 8413276 8548974 9054108 9148902 9298884 9770256 10455888 11398632 12072144 12198536 12398512 12416367 12619914 13505522 13723353 13948326 14723233 15683832 15940944 16555156 16826552 17097948 18108216 18297804 18597768 18929871 20258283 22797264 24397072 24832734 25239828 27011044 27446706 27896652 28971523 29446466 31367664 33110312 33653104 34195896 36216432 36595608 37195536 37249101 37859742 40516566 44169699 47269327 49665468 50479656 54022088 54893412 55793304 57943046 58892932 60774849 66220624 68391792 73191216 74498202 75719484 81033132 86914569 88339398 94538654 99330936 100959312 108044176 109786824 111586608 115886092 117785864 121549698 128302459 132509097 141807981 148996404 151438968 162066264 173829138 176678796 189077308 198661872 219573648 231772184 235571728 243099396 256604918 260743707 265018194 283615962 297992808 302877936 324132528 347658276 353357592 378154616 384907377 425423943 463544368 486198792 513209836 521487414 530036388 567231924 595985616 695316552 706715184 756309232 769814754 850847886 898117213 972397584 1026419672 1042974828 1060072776 1134463848 1154722131 1390633104 1539629508 1701695772 1796234426 2052839344 2085949656 2120145552 2268927696 2309444262 2694351639 3079259016 3403391544 3592468852 4171899312 4618888524 5388703278 6158518032 6806783088 7184937704 8083054917 9237777048 10777406556 14369875408 16166109834 18475554096 21554813112 32332219668 43109626224 64664439336 129328878672
• Sum of all divisors σ(n): 456959959040
• Sum of proper divisors (its aliquot sum) s(n): 327631080368
• 129328878672 is an abundant number, because the sum of its proper divisors (327631080368) is greater than itself. Its abundance is 198302201696

Bases of 129328878672

• Binary: 1111000011100100110100001010001010000₂
• Hexadecimal: 0x1E1C9A1450
• Base-36: 1NEV2PG0

Squares and roots of 129328878672

• 129328878672 squared (129328878672²) is 16725958858556896483584
• 129328878672 cubed (129328878672³) is 2163149503891168474334298575720448
• The square root of 129328878672 is 359623.2454555739
• The cube root of 129328878672 is 5057.0646302395

Scales and comparisons

• 129,328,878,672 seconds is equal to 4,112 years, 13 weeks, 3 days, 31 minutes, 12 seconds.
• To count from 1 to 129,328,878,672 would take you about eight thousand, two hundred twenty-four 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 129328878672 cubic inches would be around 421.4 feet tall.

Recreational maths with 129328878672

• 129328878672 backwards is 276878823921
• 129328878672 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129328878672's digits is 63
• More coming soon!