12640651520

Names of 12640651520

• Cardinal: 12640651520 can be written as Twelve billion, six hundred forty million, six hundred fifty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.264065152 × 10¹⁰

Factors of 12640651520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 166

Divisors of 12640651520

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 49 56 64 70 80 86 98 109 112 128 140 160 172 196 215 218 224 245 256 280 301 320 344 392 430 436 448 490 545 560 602 640 688 763 784 860 872 896 980 1090 1120 1204 1280 1376 1505 1526 1568 1720 1744 1792 1849 1960 2107 2180 2240 2408 2752 3010 3052 3136 3440 3488 3698 3815 3920 4214 4360 4480 4687 4816 5341 5504 6020 6104 6272 6880 6976 7396 7630 7840 8428 8720 8960 9245 9374 9632 10535 10682 11008 12040 12208 12544 12943 13760 13952 14792 15260 15680 16856 17440 18490 18748 19264 21070 21364 23435 24080 24416 25886 26705 27520 27904 29584 30520 31360 32809 33712 34880 36980 37496 38528 42140 42728 46870 48160 48832 51772 53410 55040 59168 61040 62720 64715 65618 67424 69760 73960 74992 77056 84280 85456 90601 93740 96320 97664 103544 106820 118336 122080 129430 131236 134848 139520 147920 149984 164045 168560 170912 181202 187480 192640 195328 201541 207088 213640 229663 236672 244160 258860 262472 269696 295840 299968 328090 337120 341824 362404 374960 385280 403082 414176 427280 453005 459326 473344 488320 517720 524944 539392 591680 599936 656180 674240 683648 724808 749920 806164 828352 854560 906010 918652 976640 1007705 1035440 1049888 1148315 1183360 1199872 1312360 1348480 1367296 1410787 1449616 1499840 1612328 1656704 1709120 1812020 1837304 2015410 2070880 2099776 2296630 2366720 2624720 2696960 2821574 2899232 2999680 3224656 3313408 3418240 3624040 3674608 4030820 4141760 4199552 4593260 5249440 5643148 5798464 5999360 6449312 6836480 7053935 7248080 7349216 8061640 8283520 8399104 9186520 9875509 10498880 11286296 11596928 12898624 14107870 14496160 14698432 16123280 16567040 18373040 19751018 20997760 22572592 23193856 25797248 28215740 28992320 29396864 32246560 36746080 39502036 41995520 45145184 49377545 51594496 56431480 57984640 58793728 64493120 73492160 79004072 90290368 98755090 112862960 115969280 128986240 146984320 158008144 180580736 197510180 225725920 257972480 293968640 316016288 361161472 395020360 451451840 632032576 790040720 902903680 1264065152 1580081440 1805807360 2528130304 3160162880 6320325760 12640651520
• Sum of all divisors σ(n): 36390691260
• Sum of proper divisors (its aliquot sum) s(n): 23750039740
• 12640651520 is an abundant number, because the sum of its proper divisors (23750039740) is greater than itself. Its abundance is 11109388220

Bases of 12640651520

• Binary: 1011110001011100010000100100000000₂
• Hexadecimal: 0x2F1710900
• Base-36: 5T1X14W

Squares and roots of 12640651520

• 12640651520 squared (12640651520²) is 159786070850078310400
• 12640651520 cubed (12640651520³) is 2019800039365870086476791808000
• The square root of 12640651520 is 112430.6520482737
• The cube root of 12640651520 is 2329.4665912263

Scales and comparisons

• 12,640,651,520 seconds is equal to 401 years, 48 weeks, 3 days, 20 hours, 5 minutes, 20 seconds.
• To count from 1 to 12,640,651,520 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 12640651520 cubic inches would be around 194.1 feet tall.

Recreational maths with 12640651520

• 12640651520 backwards is 02515604621
• 12640651520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12640651520's digits is 32
• More coming soon!