129899387520

Names of 129899387520

• Cardinal: 129899387520 can be written as One hundred twenty-nine billion, eight hundred ninety-nine million, three hundred eighty-seven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.2989938752 × 10¹¹

Factors of 129899387520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 842

Divisors of 129899387520

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 53 56 60 63 64 70 72 80 84 89 90 96 105 106 112 120 126 128 140 144 159 160 168 178 180 192 210 212 224 240 252 265 267 280 288 315 318 320 336 356 360 371 384 420 424 445 448 477 480 504 530 534 560 576 623 630 636 640 672 683 712 720 742 795 801 840 848 890 896 954 960 1008 1060 1068 1113 1120 1152 1246 1260 1272 1335 1344 1366 1424 1440 1484 1590 1602 1680 1696 1780 1855 1869 1908 1920 2016 2049 2120 2136 2226 2240 2385 2492 2520 2544 2670 2688 2732 2848 2880 2968 3115 3180 3204 3339 3360 3392 3415 3560 3710 3738 3816 4005 4032 4098 4240 4272 4452 4480 4717 4770 4781 4984 5040 5088 5340 5464 5565 5607 5696 5760 5936 6147 6230 6360 6408 6678 6720 6784 6830 7120 7420 7476 7632 8010 8064 8196 8480 8544 8904 9345 9434 9540 9562 9968 10080 10176 10245 10680 10928 11130 11214 11392 11872 12294 12460 12720 12816 13356 13440 13660 14151 14240 14343 14840 14952 15264 16020 16392 16695 16960 17088 17808 18690 18868 19080 19124 19936 20160 20352 20490 21360 21856 22260 22428 23585 23744 23905 24588 24920 25440 25632 26712 27320 28035 28302 28480 28686 29680 29904 30528 30735 32040 32784 33019 33390 33920 34176 35616 36199 37380 37736 38160 38248 39872 40320 40980 42453 42720 43029 43712 44520 44856 47170 47488 47810 49176 49840 50880 51264 53424 54640 56070 56604 56960 57372 59360 59808 60787 61056 61470 64080 65568 66038 66780 70755 71232 71715 72398 74760 75472 76320 76496 79744 81960 84906 85440 86058 87424 89040 89712 94340 95620 98352 99057 99680 101760 102528 106848 108597 109280 112140 113208 114744 118720 119616 121574 122940 128160 131136 132076 133560 141510 142464 143430 144796 149520 150944 152640 152992 163920 165095 169812 170880 172116 178080 179424 180995 182361 188680 191240 196704 198114 199360 212265 213696 215145 217194 218560 224280 226416 229488 237440 239232 243148 245880 253393 256320 262272 264152 267120 283020 286860 289592 297171 299040 301888 303935 305280 305984 325791 327840 330190 339624 344232 356160 358848 361990 364722 377360 382480 393408 396228 398720 424530 425509 427392 430290 434388 437120 448560 452832 458976 486296 491760 495285 506786 512640 528304 534240 542985 547083 566040 573720 579184 594342 598080 603776 607870 611968 651582 655680 660380 679248 688464 712320 717696 723980 729444 754720 760179 764960 786816 792456 849060 851018 860580 868776 897120 905664 911805 917952 972592 983520 990570 1013572 1056608 1068480 1085970 1094166 1132080 1147440 1158368 1188684 1196160 1215740 1266965 1276527 1303164 1311360 1320760 1358496 1376928 1447960 1458888 1485855 1509440 1520358 1529920 1584912 1628955 1698120 1702036 1721160 1737552 1794240 1811328 1823610 1835904 1945184 1967040 1981140 2027144 2113216 2127545 2136960 2171940 2188332 2264160 2280537 2294880 2316736 2377368 2431480 2533930 2553054 2606328 2641520 2716992 2735415 2753856 2895920 2917776 2971710 3018880 3040716 3059840 3169824 3221711 3257910 3396240 3404072 3442320 3475104 3588480 3647220 3800895 3829581 3890368 3934080 3962280 4054288 4226432 4255090 4343880 4376664 4528320 4561074 4589760 4633472 4754736 4862960 5067860 5106108 5212656 5283040 5433984 5470830 5507712 5791840 5835552 5943420 6081432 6339648 6382635 6443422 6515820 6792480 6808144 6884640 6950208 7294440 7601790 7659162 7780736 7924560 8108576 8510180 8687760 8753328 9056640 9122148 9179520 9509472 9665133 9725920 10135720 10212216 10425312 10566080 10941660 11402685 11583680 11671104 11886840 12162864 12679296 12765270 12886844 13031640 13584960 13616288 13769280 13900416 14588880 15203580 15318324 15849120 16108555 16217152 17020360 17375520 17506656 18244296 19018944 19147905 19330266 19451840 20271440 20424432 20850624 21132160 21883320 22551977 22805370 23167360 23342208 23773680 24325728 25530540 25773688 26063280 27169920 27232576 27538560 28995399 29177760 30407160 30636648 31698240 32217110 32434304 34040720 34751040 35013312 36488592 38037888 38295810 38660532 38903680 40542880 40848864 41701248 43766640 45103954 45610740 47547360 48325665 48651456 51061080 51547376 52126560 54465152 57990798 58355520 60814320 61273296 63396480 64434220 67655931 68081440 69502080 70026624 72977184 76591620 77321064 81085760 81697728 87533280 90207908 91221480 95094720 96651330 97302912 102122160 103094752 104253120 112759885 115981596 116711040 121628640 122546592 128868440 135311862 136162880 144976995 145954368 153183240 154642128 162171520 163395456 175066560 180415816 182442960 190189440 193302660 202967793 204244320 206189504 208506240 225519770 231963192 243257280 245093184 257736880 270623724 272325760 289953990 291908736 306366480 309284256 338279655 350133120 360831632 364885920 386605320 405935586 408488640 412379008 451039540 463926384 486514560 490186368 515473760 541247448 579907980 612732960 618568512 676559310 721663264 729771840 773210640 811871172 816977280 902079080 927852768 1014838965 1030947520 1082494896 1159815960 1225465920 1237137024 1353118620 1443326528 1459543680 1546421280 1623742344 1804158160 1855705536 2029677930 2061895040 2164989792 2319631920 2450931840 2706237240 2886653056 3092842560 3247484688 3608316320 3711411072 4059355860 4329979584 4639263840 5412474480 6185685120 6494969376 7216632640 8118711720 8659959168 9278527680 10824948960 12989938752 14433265280 16237423440 18557055360 21649897920 25979877504 32474846880 43299795840 64949693760 129899387520
• Sum of all divisors σ(n): 528953068800
• Sum of proper divisors (its aliquot sum) s(n): 399053681280
• 129899387520 is an abundant number, because the sum of its proper divisors (399053681280) is greater than itself. Its abundance is 269154293760

Bases of 129899387520

• Binary: 1111000111110100110110101101010000000₂
• Hexadecimal: 0x1E3E9B5A80
• Base-36: 1NOAQOW0

Squares and roots of 129899387520

• 129899387520 squared (129899387520²) is 16873850878071131750400
• 129899387520 cubed (129899387520³) is 2191902894165254213370185515008000
• The square root of 129899387520 is 360415.5761339957
• The cube root of 129899387520 is 5064.4898038545

Scales and comparisons

• 129,899,387,520 seconds is equal to 4,130 years, 20 weeks, 5 days, 3 hours, 12 minutes.
• To count from 1 to 129,899,387,520 would take you about eight thousand, two hundred sixty 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 129899387520 cubic inches would be around 422 feet tall.

Recreational maths with 129899387520

• 129899387520 backwards is 025783998921
• 129899387520 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129899387520's digits is 63
• More coming soon!