12640271280

Names of 12640271280

• Cardinal: 12640271280 can be written as Twelve billion, six hundred forty million, two hundred seventy-one thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.264027128 × 10¹⁰

Factors of 12640271280

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1048

Divisors of 12640271280

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 35 39 40 42 48 49 52 56 60 65 70 78 80 84 89 91 98 104 105 112 120 130 140 147 156 168 178 182 195 196 208 210 240 245 260 267 273 280 294 312 336 356 364 390 392 420 445 455 490 520 534 546 560 588 623 624 637 712 728 735 780 784 840 890 910 929 980 1040 1068 1092 1157 1176 1246 1274 1335 1365 1424 1456 1470 1560 1680 1780 1820 1858 1869 1911 1960 2136 2184 2314 2352 2492 2548 2670 2730 2787 2940 3115 3120 3185 3471 3560 3640 3716 3738 3822 3920 4272 4361 4368 4628 4645 4984 5096 5340 5460 5574 5785 5880 6230 6370 6503 6942 7120 7280 7432 7476 7644 8099 8722 9256 9290 9345 9555 9968 10192 10680 10920 11148 11570 11760 12077 12460 12740 13006 13083 13884 13935 14864 14952 15288 16198 17355 17444 18512 18580 18690 19110 19509 21360 21805 21840 22296 23140 24154 24297 24920 25480 26012 26166 27768 27870 29904 30576 32396 32515 34710 34888 36231 37160 37380 38220 39018 40495 43610 44592 45521 46280 48308 48594 49840 50960 52024 52332 55536 55740 56693 60385 64792 65030 65415 69420 69776 72462 74320 74760 76440 78036 80990 82681 84539 87220 91042 92560 96616 97188 97545 104048 104664 111480 113386 120770 121485 129584 130060 130830 136563 138840 144924 149520 152880 156072 161980 165362 169078 170079 174440 181155 182084 193232 194376 195090 209328 222960 226772 227605 241540 242970 248043 253617 260120 261660 273126 277680 283465 289848 312144 323960 330724 338156 340158 348880 362310 364168 388752 390180 413405 422695 453544 455210 483080 485940 496086 507234 520240 523320 546252 566930 578767 579696 591773 647920 661448 676312 680316 682815 724620 728336 780360 826810 845390 850395 907088 910420 966160 971880 992172 1014468 1046640 1074853 1092504 1133860 1157534 1183546 1240215 1268085 1322896 1352624 1360632 1365630 1449240 1560720 1653620 1690780 1700790 1736301 1775319 1820840 1943760 1984344 2028936 2149706 2185008 2267720 2315068 2367092 2480430 2536170 2721264 2731260 2893835 2898480 2958865 3224559 3307240 3381560 3401580 3472602 3550638 3641680 3968688 4051369 4057872 4299412 4535440 4630136 4734184 4960860 5072340 5374265 5462520 5787670 5917730 6449118 6614480 6763120 6803160 6945204 7101276 7523971 8102738 8598824 8681505 8876595 9260272 9468368 9921720 10144680 10748530 10925040 11575340 11835460 12154107 12898236 13606320 13890408 14202552 15047942 16122795 16205476 17197648 17363010 17753190 19843440 20256845 20289360 21497060 22571913 23150680 23670920 24308214 25796472 27780816 28405104 30095884 32245590 32410952 34726020 35506380 37619855 40513690 42994120 45143826 46301360 47341840 48616428 51592944 52667797 60191768 60770535 64491180 64821904 69452040 71012760 75239710 81027380 85988240 90287652 97232856 105335594 112859565 120383536 121541070 128982360 138904080 142025520 150479420 158003391 162054760 180575304 194465712 210671188 225719130 243082140 257964720 263338985 300958840 316006782 324109520 361150608 421342376 451438260 486164280 526677970 601917680 632013564 790016955 842684752 902876520 972328560 1053355940 1264027128 1580033910 1805753040 2106711880 2528054256 3160067820 4213423760 6320135640 12640271280
• Sum of all divisors σ(n): 49693694400
• Sum of proper divisors (its aliquot sum) s(n): 37053423120
• 12640271280 is an abundant number, because the sum of its proper divisors (37053423120) is greater than itself. Its abundance is 24413151840

Bases of 12640271280

• Binary: 1011110001011010110011101110110000₂
• Hexadecimal: 0x2F16B3BB0
• Base-36: 5T1OVQO

Squares and roots of 12640271280

• 12640271280 squared (12640271280²) is 159776458031992838400
• 12640271280 cubed (12640271280³) is 2019617773681924396393201152000
• The square root of 12640271280 is 112428.9610376259
• The cube root of 12640271280 is 2329.4432336417

Scales and comparisons

• 12,640,271,280 seconds is equal to 401 years, 47 weeks, 6 days, 10 hours, 28 minutes.
• To count from 1 to 12,640,271,280 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 12640271280 cubic inches would be around 194.1 feet tall.

Recreational maths with 12640271280

• 12640271280 backwards is 08217204621
• The number of decimal digits it has is: 11
• The sum of 12640271280's digits is 33
• More coming soon!