129405672900

Names of 129405672900

• Cardinal: 129405672900 can be written as One hundred twenty-nine billion, four hundred five million, six hundred seventy-two thousand, nine hundred.

Scientific notation

• Scientific notation: 1.294056729 × 10¹¹

Factors of 129405672900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 588

Divisors of 129405672900

• Number of divisors d(n): 405
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 25 27 28 30 35 36 42 45 49 50 54 60 63 70 75 81 84 90 98 100 105 108 126 135 140 147 150 162 175 180 189 196 210 225 245 252 270 294 300 315 324 350 378 405 420 441 450 490 525 540 567 571 588 630 675 700 735 756 810 882 900 945 980 1050 1134 1142 1225 1260 1323 1350 1470 1575 1620 1713 1764 1890 2025 2100 2205 2268 2284 2450 2646 2700 2835 2855 2940 3150 3426 3675 3780 3969 3997 4050 4410 4725 4900 5139 5292 5670 5710 6300 6615 6852 7350 7938 7994 8100 8565 8820 9450 10278 11025 11340 11420 11991 13230 14175 14275 14700 15417 15876 15988 17130 18900 19845 19985 20556 22050 23982 25695 26460 27979 28350 28550 30834 33075 34260 35973 39690 39970 42825 44100 46251 47964 51390 55958 56700 57100 59955 61668 66150 71946 77085 79380 79940 83937 85650 92502 99225 99925 102780 107919 111916 119910 128475 132300 139895 143892 154170 167874 171300 179865 185004 198450 199850 215838 231255 239820 251811 256950 279790 299775 308340 323757 326041 335748 359730 385425 396900 399700 419685 431676 462510 503622 513900 539595 559580 599550 647514 652082 699475 719460 755433 770850 839370 899325 925020 978123 1007244 1079190 1156275 1199100 1259055 1295028 1304164 1398950 1510866 1541700 1618785 1630205 1678740 1798650 1956246 2098425 2158380 2266299 2282287 2312550 2518110 2697975 2797900 2934369 3021732 3237570 3260410 3597300 3777165 3912492 4196850 4532598 4564574 4625100 4890615 5036220 5395950 5868738 6295275 6475140 6520820 6846861 7554330 8093925 8151025 8393700 8803107 9065196 9129148 9781230 10791900 11331495 11411435 11737476 12590550 13693722 14671845 15108660 15976009 16187850 16302050 17606214 18885825 19562460 20540583 22662990 22822870 24453075 25181100 26409321 27387444 29343690 31952018 32375700 32604100 34234305 35212428 37771650 41081166 44015535 45325980 45645740 47928027 48906150 52818642 56657475 57057175 58687380 61621749 63904036 68468610 73359225 75543300 79880045 82162332 88031070 95856054 97812300 102702915 105637284 113314950 114114350 123243498 132046605 136937220 143784081 146718450 159760090 171171525 176062140 184865247 191712108 205405830 220077675 226629900 228228700 239640135 246486996 264093210 287568162 293436900 308108745 319520180 342343050 369730494 399400225 410811660 431352243 440155350 479280270 513514575 528186420 575136324 616217490 660233025 684686100 718920405 739460988 798800450 862704486 880310700 924326235 958560540 1027029150 1198200675 1232434980 1294056729 1320466050 1437840810 1540543725 1597600900 1725408972 1848652470 2054058300 2156761215 2396401350 2588113458 2640932100 2875681620 3081087450 3594602025 3697304940 4313522430 4621631175 4792802700 5176226916 6162174900 6470283645 7189204050 8627044860 9243262350 10783806075 12940567290 14378408100 18486524700 21567612150 25881134580 32351418225 43135224300 64702836450 129405672900
• Sum of all divisors σ(n): 488825019837
• Sum of proper divisors (its aliquot sum) s(n): 359419346937
• 129405672900 is an abundant number, because the sum of its proper divisors (359419346937) is greater than itself. Its abundance is 230013674037

Bases of 129405672900

• Binary: 1111000100001001011011101110111000100₂
• Hexadecimal: 0x1E212DDDC4
• Base-36: 1NG4SO90

Squares and roots of 129405672900

• 129405672900 squared (129405672900²) is 16745828178701794410000
• 129405672900 cubed (129405672900³) is 2167005163732687154063508489000000
• 129405672900 is a perfect square number. Its square root is 359730
• The cube root of 129405672900 is 5058.0653774221

Scales and comparisons

• 129,405,672,900 seconds is equal to 4,114 years, 36 weeks, 2 days, 20 hours, 15 minutes.
• To count from 1 to 129,405,672,900 would take you about eight thousand, two hundred twenty-nine 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 129405672900 cubic inches would be around 421.5 feet tall.

Recreational maths with 129405672900

• 129405672900 backwards is 009276504921
• 129405672900 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129405672900's digits is 45
• More coming soon!