128907384320

Names of 128907384320

• Cardinal: 128907384320 can be written as One hundred twenty-eight billion, nine hundred seven million, three hundred eighty-four thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.2890738432 × 10¹¹

Factors of 128907384320

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 406

Divisors of 128907384320

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 31 32 37 40 44 52 55 62 64 65 74 80 88 104 110 124 128 130 143 148 155 160 176 185 208 220 248 256 260 286 296 307 310 320 341 352 370 403 407 416 440 481 496 512 520 572 592 614 620 640 682 704 715 740 806 814 832 880 962 992 1040 1144 1147 1184 1228 1240 1280 1364 1408 1430 1480 1535 1612 1628 1664 1705 1760 1924 1984 2015 2035 2080 2288 2294 2368 2405 2456 2480 2560 2728 2816 2860 2960 3070 3224 3256 3328 3377 3410 3520 3848 3968 3991 4030 4070 4160 4433 4576 4588 4736 4810 4912 4960 5291 5456 5632 5720 5735 5920 6140 6448 6512 6656 6754 6820 7040 7696 7936 7982 8060 8140 8320 8866 9152 9176 9472 9517 9620 9824 9920 10582 10912 11359 11440 11470 11840 12280 12617 12896 13024 13508 13640 14080 14911 15392 15872 15964 16120 16280 16640 16885 17732 18304 18352 18944 19034 19240 19648 19840 19955 21164 21824 22165 22718 22880 22940 23680 24560 25234 25792 26048 26455 27016 27280 28160 29822 30784 31928 32240 32560 33280 33770 35464 36608 36704 38068 38480 39296 39680 39910 42328 43648 43901 44330 45436 45760 45880 47360 47585 49120 50468 51584 52096 52910 54032 54560 56795 59644 61568 63085 63856 64480 65120 67540 70928 73216 73408 74555 76136 76960 78592 79360 79820 84656 87296 87802 88660 90872 91520 91760 94720 95170 98240 100936 103168 104192 104687 105820 108064 109120 113590 119288 123136 123721 124949 126170 127712 128960 130240 135080 141856 146816 147667 149110 152272 153920 157184 159640 164021 169312 174592 175604 177320 181744 183040 183520 190340 196480 201872 206336 208384 209374 211640 216128 218240 219505 227180 238576 246272 247442 249898 252340 255424 257920 260480 270160 283712 293632 295334 298220 304544 307840 319280 328042 338624 351208 352129 354640 363488 366080 367040 380680 392960 403744 418748 423280 432256 436480 439010 454360 477152 494884 499796 504680 510848 515840 520960 523435 540320 567424 587264 590668 596440 609088 615680 618605 624745 638560 656084 677248 702416 704258 709280 726976 734080 738335 761360 785920 807488 820105 837496 846560 864512 872960 878020 908720 954304 989768 999592 1009360 1021696 1031680 1041920 1046870 1080640 1134848 1181336 1192880 1218176 1231360 1237210 1249490 1277120 1312168 1354496 1360931 1404832 1408516 1418560 1453952 1468160 1476670 1522720 1614976 1624337 1640210 1674992 1693120 1729024 1756040 1760645 1817440 1908608 1979536 1999184 2018720 2043392 2093740 2161280 2269696 2362672 2385760 2436352 2474420 2498980 2554240 2624336 2708992 2721862 2809664 2817032 2837120 2907904 2936320 2953340 3045440 3229952 3248674 3280420 3349984 3386240 3512080 3521290 3634880 3817216 3873419 3959072 3998368 4037440 4187480 4322560 4577677 4725344 4771520 4872704 4948840 4997960 5108480 5248672 5443724 5619328 5634064 5674240 5815808 5906680 6090880 6459904 6497348 6560840 6699968 6772480 6804655 7024160 7042580 7269760 7634432 7746838 7918144 7996736 8074880 8121685 8374960 8645120 9155354 9450688 9543040 9897680 9995920 10216960 10497344 10887448 11238656 11268128 11348480 11813360 12181760 12994696 13121680 13399936 13544960 13609310 14048320 14085160 14539520 15493676 15836288 15993472 16149760 16243370 16749920 18310708 18901376 19086080 19367095 19795360 19991840 20994688 21774896 22477312 22536256 22888385 23626720 24363520 25989392 26243360 26799872 27218620 28096640 28170320 29079040 30987352 31672576 31986944 32299520 32486740 33499840 36621416 37802752 38172160 38734190 39590720 39983680 41989376 43549792 45072512 45776770 47253440 50354447 51978784 52486720 53599744 54437240 56193280 56340640 61974704 63345152 63973888 64973480 66999680 73242832 75605504 77468380 79181440 79967360 83978752 87099584 90145024 91553540 94506880 100708894 103957568 104973440 108874480 112386560 112681280 123949408 129946960 133999360 146485664 154936760 158362880 159934720 174199168 180290048 183107080 189013760 201417788 207915136 209946880 217748960 225362560 247898816 251772235 259893920 267998720 292971328 309873520 316725760 319869440 348398336 366214160 378027520 402835576 415830272 419893760 435497920 450725120 495797632 503544470 519787840 585942656 619747040 696796672 732428320 805671152 831660544 870995840 901450240 991595264 1007088940 1039575680 1171885312 1239494080 1464856640 1611342304 1741991680 1983190528 2014177880 2079151360 2343770624 2478988160 2929713280 3222684608 3483983360 4028355760 4158302720 4957976320 5859426560 6445369216 8056711520 9915952640 11718853120 12890738432 16113423040 25781476864 32226846080 64453692160 128907384320
• Sum of all divisors σ(n): 386207281152
• Sum of proper divisors (its aliquot sum) s(n): 257299896832
• 128907384320 is an abundant number, because the sum of its proper divisors (257299896832) is greater than itself. Its abundance is 128392512512

Bases of 128907384320

• Binary: 1111000000011011110101001011000000000₂
• Hexadecimal: 0x1E037A9600
• Base-36: 1N7W4MBK

Squares and roots of 128907384320

• 128907384320 squared (128907384320²) is 16617113732224181862400
• 128907384320 cubed (128907384320³) is 2142068666168972179733970157568000
• The square root of 128907384320 is 359036.7450832855
• The cube root of 128907384320 is 5051.5648428959

Scales and comparisons

• 128,907,384,320 seconds is equal to 4,098 years, 44 weeks, 3 days, 14 hours, 45 minutes, 20 seconds.
• To count from 1 to 128,907,384,320 would take you about eight thousand, one hundred ninety-seven 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 128907384320 cubic inches would be around 421 feet tall.

Recreational maths with 128907384320

• 128907384320 backwards is 023483709821
• The number of decimal digits it has is: 12
• The sum of 128907384320's digits is 47
• More coming soon!