129472637940

Names of 129472637940

• Cardinal: 129472637940 can be written as One hundred twenty-nine billion, four hundred seventy-two million, six hundred thirty-seven thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2947263794 × 10¹¹

Factors of 129472637940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 126

Divisors of 129472637940

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 43 45 60 73 86 90 129 146 172 180 215 219 258 292 365 387 430 438 516 645 657 730 774 860 876 1095 1290 1314 1460 1548 1849 1935 2190 2580 2628 3139 3285 3698 3870 4380 5329 5547 6278 6570 7396 7740 9245 9417 10658 11094 12556 13140 15695 15987 16641 18490 18834 21316 22188 26645 27735 28251 31390 31974 33282 36980 37668 47085 47961 53290 55470 56502 62780 63948 66564 79935 83205 94170 95922 106580 110940 113004 134977 141255 159870 166410 188340 191844 229147 239805 269954 282510 319740 332820 389017 404931 458294 479610 539908 565020 674885 687441 778034 809862 916588 959220 1145735 1167051 1214793 1349770 1374882 1556068 1619724 1945085 2024655 2062323 2291470 2334102 2429586 2699540 2749764 3437205 3501153 3890170 4049310 4124646 4582940 4668204 4859172 5835255 6073965 6874410 7002306 7780340 8098620 8249292 9853321 10311615 11670510 12147930 13748820 14004612 16727731 17505765 19706642 20623230 23341020 24295860 29559963 33455462 35011530 39413284 41246460 49266605 50183193 59119926 66910924 70023060 83638655 88679889 98533210 100366386 118239852 147799815 150549579 167277310 177359778 197066420 200732772 250915965 295599630 301099158 334554620 354719556 443399445 501831930 591199260 602198316 719292433 752747895 886798890 1003663860 1438584866 1505495790 1773597780 2157877299 2877169732 3010991580 3596462165 4315754598 6473631897 7192924330 8631509196 10789386495 12947263794 14385848660 21578772990 25894527588 32368159485 43157545980 64736318970 129472637940
• Sum of all divisors σ(n): 407663834760
• Sum of proper divisors (its aliquot sum) s(n): 278191196820
• 129472637940 is an abundant number, because the sum of its proper divisors (278191196820) is greater than itself. Its abundance is 148718558880

Bases of 129472637940

• Binary: 1111000100101001010111010101111110100₂
• Hexadecimal: 0x1E252BABF4
• Base-36: 1NH8NYT0

Squares and roots of 129472637940

• 129472637940 squared (129472637940²) is 16763163975142327443600
• 129472637940 cubed (129472637940³) is 2170371060082453721074148570184000
• The square root of 129472637940 is 359823.0647693391
• The cube root of 129472637940 is 5058.9377120307

Scales and comparisons

• 129,472,637,940 seconds is equal to 4,116 years, 43 weeks, 21 hours, 39 minutes.
• To count from 1 to 129,472,637,940 would take you about eight thousand, two hundred thirty-three 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 129472637940 cubic inches would be around 421.6 feet tall.

Recreational maths with 129472637940

• 129472637940 backwards is 049736274921
• The number of decimal digits it has is: 12
• The sum of 129472637940's digits is 54
• More coming soon!