12618721864

Names of 12618721864

• Cardinal: 12618721864 can be written as Twelve billion, six hundred eighteen million, seven hundred twenty-one thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.2618721864 × 10¹⁰

Factors of 12618721864

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 143

Divisors of 12618721864

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 8 14 19 28 31 38 41 43 49 56 62 76 82 86 98 124 133 152 164 172 196 217 248 266 287 301 328 344 392 434 532 574 589 602 779 817 868 931 961 1064 1148 1178 1204 1271 1333 1519 1558 1634 1736 1763 1862 1922 2009 2107 2296 2356 2408 2542 2666 3038 3116 3268 3526 3724 3844 4018 4123 4214 4712 5084 5332 5453 5719 6076 6232 6536 6727 7052 7448 7688 8036 8246 8428 8897 9331 10168 10664 10906 11438 12152 12341 13454 14104 16072 16492 16856 17794 18259 18662 21812 22876 24149 24682 25327 26908 28861 32984 33497 35588 36518 37324 38171 39401 40033 41323 43624 45752 47089 48298 49364 50654 53816 54653 57722 62279 65317 66994 71176 73036 74648 76342 78802 80066 82646 86387 94178 96596 98728 101308 109306 115444 124558 127813 130634 133988 146072 152684 157604 160132 165292 169043 172774 177289 188356 193192 202616 218612 230888 234479 249116 255626 261268 267976 275807 289261 305368 315208 320264 330584 338086 345548 354578 376712 382571 437224 468958 498232 511252 522536 551614 578522 676172 691096 709156 748619 765142 785137 894691 937916 1022504 1038407 1103228 1157044 1183301 1241023 1352344 1418312 1497238 1530284 1570274 1641353 1694243 1789382 1875832 1930649 2024827 2076814 2206456 2314088 2366602 2482046 2677997 2994476 3060568 3140548 3282706 3388486 3578764 3861298 4049654 4153628 4733204 4964092 5240333 5355994 5495959 5988952 6281096 6565412 6776972 7157528 7268849 7722596 8099308 8307256 9466408 9928184 10480666 10711988 10991918 11859701 13130824 13553944 14537698 15445192 16198616 20961332 21423976 21983836 23719402 29075396 32190617 36682331 38471713 41922664 43967672 47438804 50881943 58150792 64381234 73364662 76943426 83017907 94877608 101763886 128762468 146729324 153886852 166035814 203527772 225334319 257524936 293458648 307773704 332071628 407055544 450668638 664143256 901337276 1577340233 1802674552 3154680466 6309360932 12618721864
• Sum of all divisors σ(n): 31379594400
• Sum of proper divisors (its aliquot sum) s(n): 18760872536
• 12618721864 is an abundant number, because the sum of its proper divisors (18760872536) is greater than itself. Its abundance is 6142150672

Bases of 12618721864

• Binary: 1011110000001000100110101001001000₂
• Hexadecimal: 0x2F0226A48
• Base-36: 5SOV03S

Squares and roots of 12618721864

• 12618721864 squared (12618721864²) is 159232141480991634496
• 12618721864 cubed (12618721864³) is 2009306105157730478615771820544
• The square root of 12618721864 is 112333.0844586759
• The cube root of 12618721864 is 2328.1187184333

Scales and comparisons

• 12,618,721,864 seconds is equal to 401 years, 12 weeks, 2 days, 31 minutes, 4 seconds.
• To count from 1 to 12,618,721,864 would take you about eight hundred two 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 12618721864 cubic inches would be around 194 feet tall.

Recreational maths with 12618721864

• 12618721864 backwards is 46812781621
• The number of decimal digits it has is: 11
• The sum of 12618721864's digits is 46
• More coming soon!