129438868832

Names of 129438868832

• Cardinal: 129438868832 can be written as One hundred twenty-nine billion, four hundred thirty-eight million, eight hundred sixty-eight thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 1.29438868832 × 10¹¹

Factors of 129438868832

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 35286

Divisors of 129438868832

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 49 52 56 91 98 104 112 181 182 196 208 224 362 364 392 416 637 724 728 784 1267 1274 1448 1456 1568 2353 2534 2548 2896 2912 4706 5068 5096 5792 8869 9412 10136 10192 16471 17738 18824 20272 20384 32942 35083 35476 37648 40544 65884 70166 70952 75296 115297 131768 140332 141904 230594 245581 263536 280664 283808 456079 461188 491162 527072 561328 912158 922376 982324 1122656 1719067 1824316 1844752 1964648 3192553 3438134 3648632 3689504 3929296 6350023 6385106 6876268 7297264 7858592 12700046 12770212 13752536 14594528 22347871 25400092 25540424 27505072 44450161 44695742 50800184 51080848 55010144 82550299 88900322 89391484 101600368 102161696 165100598 177800644 178782968 203200736 311151127 330201196 355601288 357565936 577852093 622302254 660402392 711202576 715131872 1155704186 1244604508 1320804784 1422405152 2311408372 2489209016 2641609568 4044964651 4622816744 4978418032 8089929302 9245633488 9956836064 16179858604 18491266976 32359717208 64719434416 129438868832
• Sum of all divisors σ(n): 321013968912
• Sum of proper divisors (its aliquot sum) s(n): 191575100080
• 129438868832 is an abundant number, because the sum of its proper divisors (191575100080) is greater than itself. Its abundance is 62136231248

Bases of 129438868832

• Binary: 1111000100011001010000110010101100000₂
• Hexadecimal: 0x1E23286560
• Base-36: 1NGOK6E8

Squares and roots of 129438868832

• 129438868832 squared (129438868832²) is 16754420764507701044224
• 129438868832 cubed (129438868832³) is 2168673271693249476517179767226368
• The square root of 129438868832 is 359776.1371075075
• The cube root of 129438868832 is 5058.4978490311

Scales and comparisons

• 129,438,868,832 seconds is equal to 4,115 years, 39 weeks, 2 days, 1 hour, 20 minutes, 32 seconds.
• To count from 1 to 129,438,868,832 would take you about eight thousand, two hundred thirty-one 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 129438868832 cubic inches would be around 421.5 feet tall.

Recreational maths with 129438868832

• 129438868832 backwards is 238868834921
• The number of decimal digits it has is: 12
• The sum of 129438868832's digits is 62
• More coming soon!