129011382720

Names of 129011382720

• Cardinal: 129011382720 can be written as One hundred twenty-nine billion, eleven million, three hundred eighty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2901138272 × 10¹¹

Factors of 129011382720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 150848

Divisors of 129011382720

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 81 88 90 96 99 108 110 120 132 135 144 160 162 165 176 180 192 198 216 220 240 243 264 270 288 297 320 324 330 352 360 396 405 432 440 480 486 495 528 540 576 594 648 660 704 720 792 810 864 880 891 960 972 990 1056 1080 1188 1215 1296 1320 1440 1485 1584 1620 1728 1760 1782 1944 1980 2112 2160 2376 2430 2592 2640 2673 2880 2970 3168 3240 3520 3564 3888 3960 4320 4455 4752 4860 5184 5280 5346 5940 6336 6480 7128 7776 7920 8640 8910 9504 9720 10560 10692 11880 12960 13365 14256 15552 15840 17820 19008 19440 21384 23760 25920 26730 28512 31680 35640 38880 42768 47520 53460 57024 71280 77760 85536 95040 106920 142560 150827 171072 213840 285120 301654 427680 452481 603308 754135 855360 904962 1206616 1357443 1508270 1659097 1809924 2262405 2413232 2714886 3016540 3318194 3619848 4072329 4524810 4826464 4977291 5429772 6033080 6636388 6787215 7239696 8144658 8295485 9049620 9652928 9954582 10859544 12066160 12216987 13272776 13574430 14479392 14931873 16289316 16590970 18099240 19909164 20361645 21719088 24132320 24433974 24886455 26545552 27148860 28958784 29863746 32578632 33181940 36198480 36650961 39818328 40723290 43438176 44795619 48264640 48867948 49772910 53091104 54297720 59727492 61084935 65157264 66363880 72396960 73301922 74659365 79636656 81446580 86876352 89591238 97735896 99545820 106182208 108595440 119454984 122169870 130314528 132727760 134386857 144793920 146603844 149318730 159273312 162893160 179182476 183254805 195471792 199091640 217190880 223978095 238909968 244339740 260629056 265455520 268773714 293207688 298637460 318546624 325786320 358364952 366509610 390943584 398183280 403160571 434381760 447956190 477819936 488679480 530911040 537547428 586415376 597274920 651572640 671934285 716729904 733019220 781887168 796366560 806321142 895912380 955639872 977358960 1075094856 1172830752 1194549840 1303145280 1343868570 1433459808 1466038440 1592733120 1612642284 1791824760 1954717920 2015802855 2150189712 2345661504 2389099680 2687737140 2866919616 2932076880 3225284568 3583649520 3909435840 4031605710 4300379424 4778199360 5375474280 5864153760 6450569136 7167299040 8063211420 8600758848 10750948560 11728307520 12901138272 14334598080 16126422840 21501897120 25802276544 32252845680 43003794240 64505691360 129011382720
• Sum of all divisors σ(n): 502018328448
• Sum of proper divisors (its aliquot sum) s(n): 373006945728
• 129011382720 is an abundant number, because the sum of its proper divisors (373006945728) is greater than itself. Its abundance is 243995563008

Bases of 129011382720

• Binary: 1111000001001101011010111100111000000₂
• Hexadecimal: 0x1E09AD79C0
• Base-36: 1N9M1O00

Squares and roots of 129011382720

• 129011382720 squared (129011382720²) is 16643936871326314598400
• 129011382720 cubed (129011382720³) is 2147257309674198566661305499648000
• The square root of 129011382720 is 359181.5456283909
• The cube root of 129011382720 is 5052.9229586401

Scales and comparisons

• 129,011,382,720 seconds is equal to 4,102 years, 8 weeks, 3 days, 7 hours, 12 minutes.
• To count from 1 to 129,011,382,720 would take you about eight thousand, two hundred 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 129011382720 cubic inches would be around 421.1 feet tall.

Recreational maths with 129011382720

• 129011382720 backwards is 027283110921
• 129011382720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129011382720's digits is 36
• More coming soon!