129128679680

Names of 129128679680

• Cardinal: 129128679680 can be written as One hundred twenty-nine billion, one hundred twenty-eight million, six hundred seventy-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2912867968 × 10¹¹

Factors of 129128679680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3320

Divisors of 129128679680

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 31 32 35 40 44 52 55 56 62 64 65 70 77 80 88 91 104 110 112 124 128 130 140 143 154 155 160 176 182 208 217 220 224 248 256 260 280 286 308 310 320 341 352 364 385 403 416 434 440 448 455 496 520 560 572 616 620 640 682 704 715 728 770 806 832 868 880 896 910 992 1001 1040 1085 1120 1144 1232 1240 1280 1364 1408 1430 1456 1540 1612 1664 1705 1736 1760 1792 1820 1984 2002 2015 2080 2170 2240 2288 2387 2464 2480 2728 2816 2821 2860 2912 3080 3224 3251 3328 3410 3472 3520 3640 3968 4004 4030 4160 4340 4433 4480 4576 4774 4928 4960 5005 5456 5642 5720 5824 6160 6448 6502 6820 6944 7040 7280 7936 8008 8060 8320 8680 8866 8960 9152 9548 9856 9920 10010 10912 11284 11440 11648 11935 12320 12896 13004 13640 13888 14080 14105 14560 16016 16120 16255 16640 17360 17732 18304 19096 19712 19840 20020 21824 22165 22568 22757 22880 23296 23870 24640 25792 26008 27280 27776 28210 29120 31031 32032 32240 32510 34720 35464 35761 36608 38192 39680 40040 42263 43648 44330 45136 45514 45760 47740 49280 51584 52016 54560 55552 56420 58240 62062 64064 64480 65020 69440 70928 71522 76384 80080 84526 87296 88660 90272 91028 91520 95480 98560 100781 103168 104032 109120 112840 113785 116480 124124 128128 128960 130040 138880 141856 143044 152768 155155 160160 169052 177320 178805 180544 182056 183040 190960 201562 208064 211315 218240 225680 227570 248248 250327 256256 257920 260080 277760 283712 286088 295841 305536 310310 320320 338104 354640 357610 361088 364112 381920 403124 416128 422630 436480 451360 455140 464893 496496 500654 503905 515840 520160 567424 572176 591682 611072 620620 640640 676208 705467 709280 715220 722176 728224 763840 806248 832256 845260 902720 910280 929786 992992 1001308 1007810 1040320 1108591 1134848 1144352 1183364 1241240 1251635 1281280 1310153 1352416 1410934 1418560 1430440 1456448 1479205 1527680 1612496 1690520 1805440 1820560 1859572 1985984 2002616 2015620 2080640 2217182 2288704 2324465 2366728 2482480 2503270 2620306 2704832 2821868 2837120 2860880 2912896 2958410 3055360 3224992 3254251 3381040 3527335 3610880 3641120 3719144 3971968 4005232 4031240 4161280 4434364 4577408 4648930 4733456 4964960 5006540 5240612 5409664 5542955 5643736 5674240 5721760 5825792 5916820 6449984 6508502 6550765 6762080 7054670 7282240 7438288 7760137 7943936 8010464 8062480 8868728 9154816 9171071 9297860 9466912 9929920 10013080 10481224 10819328 11085910 11287472 11443520 11833640 12899968 13017004 13101530 13524160 14109340 14411683 14564480 14876576 15520274 16020928 16124960 16271255 17737456 18342142 18595720 18933824 19859840 20026160 20962448 22171820 22574944 22887040 23667280 25799936 26034008 26203060 27048320 28218680 28823366 29128960 29753152 31040548 32041856 32249920 32542510 35474912 36684284 37191440 37867648 38800685 39719680 40052320 41924896 44343640 45149888 45774080 45855355 47334560 52068016 52406120 54096640 56437360 57646732 59506304 62081096 64083712 64499840 65085020 70949824 72058415 73368568 74382880 75735296 77601370 80104640 83849792 88687280 90299776 91710710 94669120 100881781 104136032 104812240 112874720 115293464 119012608 124162192 128999680 130170040 141899648 144116830 146737136 148765760 155202740 160209280 167699584 177374560 180599552 183421420 189338240 201763562 208272064 209624480 225749440 230586928 248324384 260340080 283799296 288233660 293474272 297531520 310405480 320418560 335399168 354749120 366842840 378676480 403527124 416544128 419248960 451498880 461173856 496648768 504408905 520680160 576467320 586948544 595063040 620810960 709498240 733685680 807054248 833088256 838497920 902997760 922347712 993297536 1008817810 1041360320 1152934640 1173897088 1241621920 1418996480 1467371360 1614108496 1676995840 1844695424 1986595072 2017635620 2082720640 2305869280 2347794176 2483243840 2934742720 3228216992 3689390848 4035271240 4165441280 4611738560 4966487680 5869485440 6456433984 8070542480 9223477120 9932975360 11738970880 12912867968 16141084960 18446954240 25825735936 32282169920 64564339840 129128679680
• Sum of all divisors σ(n): 428816941056
• Sum of proper divisors (its aliquot sum) s(n): 299688261376
• 129128679680 is an abundant number, because the sum of its proper divisors (299688261376) is greater than itself. Its abundance is 170559581696

Bases of 129128679680

• Binary: 1111000010000101010110100100100000000₂
• Hexadecimal: 0x1E10AB4900
• Base-36: 1NBJVQWW

Squares and roots of 129128679680

• 129128679680 squared (129128679680²) is 16674215915900044902400
• 129128679680 cubed (129128679680³) is 2153119485919414717099626463232000
• The square root of 129128679680 is 359344.7921982451
• The cube root of 129128679680 is 5054.4538648163

Scales and comparisons

• 129,128,679,680 seconds is equal to 4,105 years, 46 weeks, 2 days, 21 hours, 41 minutes, 20 seconds.
• To count from 1 to 129,128,679,680 would take you about eight thousand, two hundred eleven 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 129128679680 cubic inches would be around 421.2 feet tall.

Recreational maths with 129128679680

• 129128679680 backwards is 086976821921
• The number of decimal digits it has is: 12
• The sum of 129128679680's digits is 59
• More coming soon!