129743934138

Names of 129743934138

• Cardinal: 129743934138 can be written as One hundred twenty-nine billion, seven hundred forty-three million, nine hundred thirty-four thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.29743934138 × 10¹¹

Factors of 129743934138

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8428

Divisors of 129743934138

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 31 39 42 54 62 63 78 91 93 103 117 126 182 186 189 206 217 234 273 279 309 351 378 403 434 546 558 618 651 702 721 806 819 837 927 1209 1302 1339 1442 1638 1674 1854 1953 2163 2418 2457 2678 2781 2821 3193 3627 3906 4017 4326 4914 5562 5642 5859 6386 6489 7254 8034 8269 8463 9373 9579 10881 11718 12051 12978 16538 16926 18746 19158 19467 21762 22351 24102 24807 25389 28119 28737 36153 38934 41509 44702 49614 50778 56238 57474 57883 67053 72306 74421 76167 83018 84357 86211 107497 115766 124527 134106 148842 152334 168714 172422 173649 201159 214994 223263 249054 253071 256339 290563 322491 347298 373581 402318 446526 506142 512678 520947 581126 603477 644982 747162 752479 769017 851707 871689 967473 1041894 1120743 1206954 1504958 1538034 1562841 1703414 1743378 1794373 1934946 2241486 2257437 2307051 2555121 2615067 2902419 3125682 3332407 3588746 4514874 4614102 5110242 5230134 5383119 5804838 5961949 6664814 6772311 6921153 7665363 7845201 9997221 10766238 11072191 11923898 13544622 13842306 15330726 15690402 16149357 17885847 19994442 20316933 22144382 22996089 23326849 26402917 29991663 32298714 33216573 35771694 40633866 45992178 46653698 48448071 52805834 53657541 59983326 66433146 69980547 77505337 79208751 89974989 96896142 99649719 107315082 139961094 155010674 158417502 160972623 179949978 184820419 199299438 209941641 232516011 237626253 298949157 321945246 343237921 369640838 419883282 465032022 475252506 554461257 597898314 629824923 686475842 697548033 712878759 1029713763 1108922514 1259649846 1395096066 1425757518 1663383771 2059427526 2092644099 2402665447 3089141289 3326767542 4185288198 4805330894 4990151313 6178282578 7207996341 9267423867 9980302626 14415992682 18534847734 21623989023 43247978046 64871967069 129743934138
• Sum of all divisors σ(n): 369903206400
• Sum of proper divisors (its aliquot sum) s(n): 240159272262
• 129743934138 is an abundant number, because the sum of its proper divisors (240159272262) is greater than itself. Its abundance is 110415338124

Bases of 129743934138

• Binary: 1111000110101010101110101001010111010₂
• Hexadecimal: 0x1E355752BA
• Base-36: 1NLQ6SAI

Squares and roots of 129743934138

• 129743934138 squared (129743934138²) is 16833488445605681803044
• 129743934138 cubed (129743934138³) is 2184043016199447575372725823916072
• The square root of 129743934138 is 360199.8530510527
• The cube root of 129743934138 is 5062.4687362457

Scales and comparisons

• 129,743,934,138 seconds is equal to 4,125 years, 23 weeks, 4 days, 21 hours, 42 minutes, 18 seconds.
• To count from 1 to 129,743,934,138 would take you about eight thousand, two hundred fifty 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 129743934138 cubic inches would be around 421.9 feet tall.

Recreational maths with 129743934138

• 129743934138 backwards is 831439347921
• 129743934138 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129743934138's digits is 54
• More coming soon!