12138747984

Names of 12138747984

• Cardinal: 12138747984 can be written as Twelve billion, one hundred thirty-eight million, seven hundred forty-seven thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.2138747984 × 10¹⁰

Factors of 12138747984

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 969

Divisors of 12138747984

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 41 44 48 66 72 82 88 99 123 132 144 164 176 198 246 264 311 328 369 396 451 492 528 601 622 656 738 792 902 933 984 1202 1244 1353 1476 1584 1803 1804 1866 1968 2404 2488 2706 2799 2952 3421 3606 3608 3732 4059 4808 4976 5409 5412 5598 5904 6611 6842 7212 7216 7464 8118 9616 10263 10818 10824 11196 12751 13222 13684 14424 14928 16236 19833 20526 21636 21648 22392 24641 25502 26444 27368 28848 30789 32472 38253 39666 41052 43272 44784 49282 51004 52888 54736 59499 61578 64944 73923 76506 79332 82104 86544 98564 102008 105776 114759 118998 123156 140261 147846 153012 158664 164208 186911 197128 204016 221769 229518 237996 246312 271051 280522 295692 306024 317328 373822 394256 420783 443538 459036 475992 492624 542102 560733 561044 591384 612048 747644 813153 841566 887076 918072 951984 1084204 1121466 1122088 1182768 1262349 1495288 1626306 1682199 1683132 1774152 1836144 2056021 2168408 2242932 2244176 2439459 2524698 2990576 3252612 3364398 3366264 3548304 4112042 4336816 4485864 4878918 5049396 6168063 6505224 6728796 6732528 7663351 8224084 8971728 9757836 10098792 12336126 13010448 13457592 15326702 16448168 18504189 19515672 20197584 22990053 24672252 26915184 30653404 32896336 37008378 39031344 45980106 49344504 61306808 68970159 74016756 84296861 91960212 98689008 122613616 137940318 148033512 168593722 183920424 252890583 275880636 296067024 337187444 367840848 505781166 551761272 674374888 758671749 1011562332 1103522544 1348749776 1517343498 2023124664 3034686996 4046249328 6069373992 12138747984
• Sum of all divisors σ(n): 38149308288
• Sum of proper divisors (its aliquot sum) s(n): 26010560304
• 12138747984 is an abundant number, because the sum of its proper divisors (26010560304) is greater than itself. Its abundance is 13871812320

Bases of 12138747984

• Binary: 1011010011100001101001100001010000₂
• Hexadecimal: 0x2D3869850
• Base-36: 5KR3HW0

Squares and roots of 12138747984

• 12138747984 squared (12138747984²) is 147349202619064064256
• 12138747984 cubed (12138747984³) is 1788634836236171429954366459904
• The square root of 12138747984 is 110175.9864217245
• The cube root of 12138747984 is 2298.2184050725

Scales and comparisons

• 12,138,747,984 seconds is equal to 385 years, 50 weeks, 4 days, 18 hours, 26 minutes, 24 seconds.
• To count from 1 to 12,138,747,984 would take you about seven hundred seventy-one 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 12138747984 cubic inches would be around 191.5 feet tall.

Recreational maths with 12138747984

• 12138747984 backwards is 48974783121
• The number of decimal digits it has is: 11
• The sum of 12138747984's digits is 54
• More coming soon!