129428184072

Names of 129428184072

• Cardinal: 129428184072 can be written as One hundred twenty-nine billion, four hundred twenty-eight million, one hundred eighty-four thousand and seventy-two.

Scientific notation

• Scientific notation: 1.29428184072 × 10¹¹

Factors of 129428184072

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8744

Divisors of 129428184072

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 11 12 19 22 24 31 33 38 44 57 62 66 76 88 93 97 114 124 132 152 186 194 209 228 248 264 291 341 372 388 418 456 582 589 627 682 744 776 836 1023 1067 1164 1178 1254 1364 1672 1767 1843 2046 2134 2328 2356 2508 2728 3007 3201 3534 3686 4092 4268 4712 5016 5529 6014 6402 6479 7068 7372 8184 8536 8581 9021 11058 12028 12804 12958 14136 14744 17162 18042 19437 20273 22116 24056 25608 25743 25916 33077 34324 36084 38874 40546 44232 51486 51832 57133 60819 66154 68648 72168 77748 81092 94391 99231 102972 114266 121638 132308 155496 162184 163039 171399 188782 198462 205944 228532 243276 264616 266011 283173 326078 342798 377564 396924 457064 486552 489117 532022 566346 628463 652156 685596 755128 793848 798033 832357 978234 1064044 1132692 1256926 1304312 1371192 1596066 1664714 1793429 1885389 1956468 2128088 2265384 2497071 2513852 2926121 3192132 3329428 3586858 3770778 3912936 4994142 5027704 5054209 5380287 5852242 6384264 6658856 7173716 7541556 8778363 9155927 9988284 10108418 10760574 11704484 14347432 15083112 15162627 15814783 17556726 18311854 19976568 20216836 21521148 23408968 25803067 27467781 30325254 31629566 35113452 36623708 40433672 43042296 47444349 51606134 54935562 55596299 60650508 63259132 70226904 73247416 77409201 94888698 103212268 109871124 111192598 121301016 126518264 154818402 166788897 173962613 189777396 206424536 219742248 222385196 283833737 309636804 333577794 347925226 379554792 444770392 490258273 521887839 567667474 619273608 667155588 695850452 851501211 980516546 1043775678 1135334948 1334311176 1391700904 1470774819 1703002422 1961033092 2087551356 2270669896 2941549638 3406004844 3922066184 4175102712 5392841003 5883099276 6812009688 10785682006 11766198552 16178523009 21571364012 32357046018 43142728024 64714092036 129428184072
• Sum of all divisors σ(n): 387549388800
• Sum of proper divisors (its aliquot sum) s(n): 258121204728
• 129428184072 is an abundant number, because the sum of its proper divisors (258121204728) is greater than itself. Its abundance is 128693020656

Bases of 129428184072

• Binary: 1111000100010100001010101110000001000₂
• Hexadecimal: 0x1E22855C08
• Base-36: 1NGI75ZC

Squares and roots of 129428184072

• 129428184072 squared (129428184072²) is 16751654832175514501184
• 129428184072 cubed (129428184072³) is 2168136265129420759070548013941248
• The square root of 129428184072 is 359761.2876227791
• The cube root of 129428184072 is 5058.3586576553

Scales and comparisons

• 129,428,184,072 seconds is equal to 4,115 years, 21 weeks, 4 days, 9 hours, 21 minutes, 12 seconds.
• To count from 1 to 129,428,184,072 would take you about eight thousand, two hundred thirty 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 129428184072 cubic inches would be around 421.5 feet tall.

Recreational maths with 129428184072

• 129428184072 backwards is 270481824921
• The number of decimal digits it has is: 12
• The sum of 129428184072's digits is 48
• More coming soon!