12688436640

Names of 12688436640

• Cardinal: 12688436640 can be written as Twelve billion, six hundred eighty-eight million, four hundred thirty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.268843664 × 10¹⁰

Factors of 12688436640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 772

Divisors of 12688436640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 37 40 44 48 55 60 66 74 80 88 96 107 110 111 120 132 148 160 165 176 185 214 220 222 240 264 296 321 330 352 370 407 428 440 444 480 528 535 555 592 607 642 660 740 814 856 880 888 1056 1070 1110 1177 1184 1214 1221 1284 1320 1480 1605 1628 1712 1760 1776 1821 2035 2140 2220 2354 2428 2442 2568 2640 2960 3035 3210 3256 3424 3531 3552 3642 3959 4070 4280 4440 4708 4856 4884 5136 5280 5885 5920 6070 6105 6420 6512 6677 7062 7284 7918 8140 8560 8880 9105 9416 9712 9768 10272 11770 11877 12140 12210 12840 13024 13354 14124 14568 15836 16280 17120 17655 17760 18210 18832 19424 19536 19795 20031 22459 23540 23754 24280 24420 25680 26708 28248 29136 31672 32560 33385 35310 36420 37664 39072 39590 40062 43549 44918 47080 47508 48560 48840 51360 53416 56496 58272 59385 63344 64949 65120 66770 67377 70620 72840 79180 80124 87098 89836 94160 95016 97120 97680 100155 106832 112295 112992 118770 126688 129898 130647 133540 134754 141240 145680 158360 160248 174196 179672 188320 190032 194847 195360 200310 213664 217745 224590 237540 247049 259796 261294 267080 269508 282480 291360 316720 320496 324745 336885 348392 359344 380064 389694 400620 435490 449180 475080 494098 519592 522588 534160 539016 564960 633440 640992 649490 653235 673770 696784 714439 718688 741147 779388 801240 870980 898360 950160 974235 988196 1039184 1045176 1068320 1078032 1235245 1298980 1306470 1347540 1393568 1428878 1482294 1558776 1602480 1741960 1796720 1900320 1948470 1976392 2078368 2090352 2143317 2156064 2403113 2470490 2597960 2612940 2695080 2857756 2964588 3117552 3204960 3483920 3572195 3593440 3705735 3896940 3952784 4180704 4286634 4806226 4940980 5195920 5225880 5390160 5715512 5929176 6235104 6967840 7144390 7209339 7411470 7793880 7905568 8573268 9612452 9881960 10391840 10451760 10716585 10780320 11431024 11858352 12015565 14288780 14418678 14822940 15587760 17146536 19224904 19763920 20903520 21433170 22862048 23716704 24031130 26434243 28577560 28837356 29645880 31175520 34293072 36046695 38449808 39527840 42866340 48062260 52868486 57155120 57674712 59291760 68586144 72093390 76899616 79302729 85732680 96124520 105736972 114310240 115349424 118583520 132171215 144186780 158605458 171465360 192249040 211473944 230698848 264342430 288373560 317210916 342930720 384498080 396513645 422947888 528684860 576747120 634421832 793027290 845895776 1057369720 1153494240 1268843664 1586054580 2114739440 2537687328 3172109160 4229478880 6344218320 12688436640
• Sum of all divisors σ(n): 45273489408
• Sum of proper divisors (its aliquot sum) s(n): 32585052768
• 12688436640 is an abundant number, because the sum of its proper divisors (32585052768) is greater than itself. Its abundance is 19896616128

Bases of 12688436640

• Binary: 1011110100010010100010110110100000₂
• Hexadecimal: 0x2F44A2DA0
• Base-36: 5TUD8DC

Squares and roots of 12688436640

• 12688436640 squared (12688436640²) is 160996424367294489600
• 12688436640 cubed (12688436640³) is 2042792929850968219510738944000
• The square root of 12688436640 is 112642.9608985843
• The cube root of 12688436640 is 2332.3982404551

Scales and comparisons

• 12,688,436,640 seconds is equal to 403 years, 23 weeks, 3 days, 21 hours, 44 minutes.
• To count from 1 to 12,688,436,640 would take you about eight hundred six 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 12688436640 cubic inches would be around 194.4 feet tall.

Recreational maths with 12688436640

• 12688436640 backwards is 04663488621
• 12688436640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12688436640's digits is 48
• More coming soon!