129985357320

Names of 129985357320

• Cardinal: 129985357320 can be written as One hundred twenty-nine billion, nine hundred eighty-five million, three hundred fifty-seven thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.2998535732 × 10¹¹

Factors of 129985357320

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 59318

Divisors of 129985357320

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 28 30 35 36 39 40 42 45 52 56 60 63 65 67 70 72 78 84 90 91 104 105 117 120 126 130 134 140 156 168 180 182 195 201 210 234 252 260 268 273 280 312 315 335 360 364 390 402 420 455 468 469 504 520 536 546 585 603 630 670 728 780 804 819 840 871 910 936 938 1005 1092 1170 1206 1260 1340 1365 1407 1560 1608 1638 1742 1820 1876 2010 2184 2340 2345 2412 2520 2613 2680 2730 2814 3015 3276 3484 3640 3752 4020 4095 4221 4355 4680 4690 4824 5226 5460 5628 6030 6097 6552 6968 7035 7839 8040 8190 8442 8710 9380 10452 10920 11256 12060 12194 13065 14070 15678 16380 16884 17420 18291 18760 20904 21105 24120 24388 26130 28140 30485 31356 32760 33768 34840 36582 39195 42210 48776 52260 54873 56280 59221 60970 62712 73164 78390 84420 91455 104520 109746 118442 121940 146328 156780 168840 177663 182910 219492 236884 243880 274365 296105 313560 355326 365820 414547 438984 473768 532989 548730 592210 710652 731640 769873 829094 888315 1065978 1097460 1184420 1243641 1421304 1539746 1658188 1776630 2072735 2131956 2194920 2309619 2368840 2487282 2664945 3079492 3316376 3553260 3730923 3849365 3967807 4145470 4263912 4619238 4974564 5329890 5389111 6158984 6218205 6928857 7106520 7461846 7698730 7935614 8290940 9238476 9949128 10659780 10778222 11548095 11903421 12436410 13857714 14923692 15397460 15871228 16167333 16581880 18476952 18654615 19839035 21319560 21556444 23096190 23806842 24872820 26945555 27715428 27774649 29847384 30794920 31742456 32334666 34644285 35710263 37309230 39678070 43112888 46192380 47613684 48501999 49745640 51581491 53891110 55430856 55549298 59517105 64669332 69288570 71420526 74618460 79356140 80836665 83323947 92384760 95227368 97003998 103162982 107782220 111098596 119034210 129338664 138577140 138873245 142841052 149236920 154744473 158712280 161673330 166647894 178551315 194007996 206325964 215564440 222197192 238068420 242509995 249971841 257907455 277154280 277746490 285682104 309488946 323346660 333295788 357102630 361070437 388015992 412651928 416619735 464233419 476136840 485019990 499943682 515814910 555492980 618977892 646693320 666591576 714205260 722140874 773722365 833239470 928466838 970039980 999887364 1031629820 1083211311 1110985960 1237955784 1249859205 1428410520 1444281748 1547444730 1666478940 1805352185 1856933676 1940079960 1999774728 2063259640 2166422622 2321167095 2499718410 2888563496 3094889460 3249633933 3332957880 3610704370 3713867352 4332845244 4642334190 4999436820 5416056555 6189778920 6499267866 7221408740 8665690488 9284668380 9998873640 10832113110 12998535732 14442817480 16248169665 18569336760 21664226220 25997071464 32496339330 43328452440 64992678660 129985357320
• Sum of all divisors σ(n): 527710659840
• Sum of proper divisors (its aliquot sum) s(n): 397725302520
• 129985357320 is an abundant number, because the sum of its proper divisors (397725302520) is greater than itself. Its abundance is 267739945200

Bases of 129985357320

• Binary: 1111001000011101110110010011000001000₂
• Hexadecimal: 0x1E43BB2608
• Base-36: 1NPPXBM0

Squares and roots of 129985357320

• 129985357320 squared (129985357320²) is 16896193117608077582400
• 129985357320 cubed (129985357320³) is 2196257699740010748266545743168000
• The square root of 129985357320 is 360534.8212309041
• The cube root of 129985357320 is 5065.6068149217

Scales and comparisons

• 129,985,357,320 seconds is equal to 4,133 years, 6 weeks, 6 days, 3 hours, 42 minutes.
• To count from 1 to 129,985,357,320 would take you about eight thousand, two hundred sixty-six 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 129985357320 cubic inches would be around 422.1 feet tall.

Recreational maths with 129985357320

• 129985357320 backwards is 023753589921
• The number of decimal digits it has is: 12
• The sum of 129985357320's digits is 54
• More coming soon!