12745920816

Names of 12745920816

• Cardinal: 12745920816 can be written as Twelve billion, seven hundred forty-five million, nine hundred twenty thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.2745920816 × 10¹⁰

Factors of 12745920816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3275

Divisors of 12745920816

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 31 34 36 48 51 53 62 68 72 93 102 106 124 136 144 153 159 186 204 212 248 272 279 306 318 372 408 424 477 496 527 558 612 636 744 816 848 901 954 1054 1116 1224 1272 1488 1581 1643 1802 1908 2108 2232 2448 2544 2703 3162 3169 3286 3604 3816 4216 4464 4743 4929 5406 6324 6338 6572 7208 7632 8109 8432 9486 9507 9858 10812 12648 12676 13144 14416 14787 16218 18972 19014 19716 21624 25296 25352 26288 27931 28521 29574 32436 37944 38028 39432 43248 50704 53873 55862 57042 59148 64872 75888 76056 78864 83793 98239 107746 111724 114084 118296 129744 152112 161619 167586 167957 196478 215492 223448 228168 236592 251379 294717 323238 335172 335914 392956 430984 446896 456336 484857 502758 503871 589434 646476 670344 671828 785912 861968 884151 969714 1005516 1007742 1178868 1292952 1340688 1343656 1511613 1571824 1670063 1768302 1939428 2011032 2015484 2357736 2585904 2687312 2855269 3023226 3340126 3536604 3878856 4022064 4030968 4715472 5010189 5206667 5710538 6046452 6680252 7073208 7757712 8061936 8565807 10020378 10413334 11421076 12092904 13360504 14146416 15030567 15620001 17131614 20040756 20826668 22842152 24185808 25697421 26721008 30061134 31240002 34263228 40081512 41653336 45684304 46860003 51394842 60122268 62480004 68526456 80163024 83306672 88513339 93720006 102789684 120244536 124960008 137052912 177026678 187440012 205579368 240489072 249920016 265540017 354053356 374880024 411158736 531080034 708106712 749760048 796620051 1062160068 1416213424 1593240102 2124320136 3186480204 4248640272 6372960408 12745920816
• Sum of all divisors σ(n): 39735671040
• Sum of proper divisors (its aliquot sum) s(n): 26989750224
• 12745920816 is an abundant number, because the sum of its proper divisors (26989750224) is greater than itself. Its abundance is 14243829408

Bases of 12745920816

• Binary: 1011110111101101110101000100110000₂
• Hexadecimal: 0x2F7B75130
• Base-36: 5USLBG0

Squares and roots of 12745920816

• 12745920816 squared (12745920816²) is 162458497447742105856
• 12745920816 cubed (12745920816³) is 2070683144355258979229665898496
• The square root of 12745920816 is 112897.8335310293
• The cube root of 12745920816 is 2335.9151965759

Scales and comparisons

• 12,745,920,816 seconds is equal to 405 years, 14 weeks, 4 days, 5 hours, 33 minutes, 36 seconds.
• To count from 1 to 12,745,920,816 would take you about eight hundred ten 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 12745920816 cubic inches would be around 194.7 feet tall.

Recreational maths with 12745920816

• 12745920816 backwards is 61802954721
• The number of decimal digits it has is: 11
• The sum of 12745920816's digits is 45
• More coming soon!