12640724928

Names of 12640724928

• Cardinal: 12640724928 can be written as Twelve billion, six hundred forty million, seven hundred twenty-four thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.2640724928 × 10¹⁰

Factors of 12640724928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3923

Divisors of 12640724928

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 23 24 26 32 36 38 39 46 48 52 57 64 69 72 76 78 92 96 104 114 117 138 144 152 156 171 184 192 207 208 228 234 247 276 288 299 304 312 342 368 414 416 437 456 468 494 552 576 598 608 624 684 736 741 828 832 874 897 912 936 988 1104 1196 1216 1248 1311 1368 1472 1482 1656 1748 1794 1824 1872 1976 2208 2223 2392 2496 2622 2691 2736 2964 3312 3496 3588 3648 3744 3863 3933 3952 4416 4446 4784 5244 5382 5472 5681 5928 6624 6992 7176 7488 7726 7866 7904 8892 9568 10488 10764 10944 11362 11589 11856 13248 13984 14352 15452 15732 15808 17043 17784 19136 20976 21528 22724 23178 23712 27968 28704 30904 31464 34086 34767 35568 41952 43056 45448 46356 47424 50219 51129 57408 61808 62928 68172 69534 71136 73397 83904 86112 88849 90896 92712 100438 102258 123616 125856 136344 139068 142272 146794 150657 172224 177698 181792 185424 200876 204516 220191 247232 251712 266547 272688 278136 293588 301314 355396 363584 370848 401752 409032 440382 451971 533094 545376 556272 587176 602628 660573 710792 741696 799641 803504 818064 880764 903942 954161 1066188 1090752 1112544 1155037 1174352 1205256 1321146 1421584 1599282 1607008 1636128 1688131 1761528 1807884 1908322 2132376 2225088 2310074 2348704 2410512 2642292 2843168 2862483 3198564 3214016 3272256 3376262 3465111 3523056 3615768 3816644 4264752 4620148 4697408 4821024 5064393 5284584 5686336 5724966 6397128 6752524 6930222 7046112 7231536 7633288 8529504 8587449 9240296 9642048 10128786 10395333 10569168 11449932 12794256 13505048 13860444 14092224 14463072 15193179 15266576 17059008 17174898 18480592 20257572 20790666 21138336 21945703 22899864 25588512 27010096 27720888 28926144 30386358 30533152 34349796 36961184 40515144 41581332 42276672 43891406 45799728 51177024 54020192 55441776 60772716 61066304 65837109 68699592 73922368 81030288 83162664 87782812 91599456 108040384 110883552 121545432 131674218 137399184 162060576 166325328 175565624 183198912 197511327 221767104 243090864 263348436 274798368 324121152 332650656 351131248 395022654 486181728 526696872 549596736 665301312 702262496 790045308 972363456 1053393744 1404524992 1580090616 2106787488 3160181232 4213574976 6320362464 12640724928
• Sum of all divisors σ(n): 42869998080
• Sum of proper divisors (its aliquot sum) s(n): 30229273152
• 12640724928 is an abundant number, because the sum of its proper divisors (30229273152) is greater than itself. Its abundance is 17588548224

Bases of 12640724928

• Binary: 1011110001011100100010011111000000₂
• Hexadecimal: 0x2F17227C0
• Base-36: 5T1YLS0

Squares and roots of 12640724928

• 12640724928 squared (12640724928²) is 159787926705360605184
• 12640724928 cubed (12640724928³) is 2019835228297888713178554826752
• The square root of 12640724928 is 112430.9785068155
• The cube root of 12640724928 is 2329.4711005177

Scales and comparisons

• 12,640,724,928 seconds is equal to 401 years, 48 weeks, 4 days, 16 hours, 28 minutes, 48 seconds.
• To count from 1 to 12,640,724,928 would take you about eight hundred 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 12640724928 cubic inches would be around 194.1 feet tall.

Recreational maths with 12640724928

• 12640724928 backwards is 82942704621
• The number of decimal digits it has is: 11
• The sum of 12640724928's digits is 45
• More coming soon!