12728445912

Names of 12728445912

• Cardinal: 12728445912 can be written as Twelve billion, seven hundred twenty-eight million, four hundred forty-five thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.2728445912 × 10¹⁰

Factors of 12728445912

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5207

Divisors of 12728445912

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 29 36 39 42 52 56 58 63 72 78 84 87 91 104 116 117 126 156 168 169 174 182 203 232 234 252 261 273 312 338 348 364 377 406 468 504 507 522 546 609 676 696 728 754 812 819 936 1014 1044 1092 1131 1183 1218 1352 1508 1521 1624 1638 1827 2028 2088 2184 2262 2366 2436 2639 3016 3042 3276 3393 3549 3654 4056 4524 4732 4872 4901 5153 5278 6084 6552 6786 7098 7308 7917 9048 9464 9802 10306 10556 10647 12168 13572 14196 14616 14703 15459 15834 19604 20612 21112 21294 23751 27144 28392 29406 30918 31668 34307 36071 39208 41224 42588 44109 46377 47502 58812 61836 63336 66989 68614 72142 85176 88218 92754 95004 102921 108213 117624 123672 133978 137228 144284 149437 176436 185508 190008 200967 205842 216426 267956 274456 288568 298874 308763 324639 352872 371016 401934 411684 432852 448311 468923 535912 597748 602901 617526 649278 803868 823368 865704 870857 896622 937846 1046059 1195496 1205802 1235052 1298556 1344933 1406769 1607736 1741714 1793244 1875692 1942681 2092118 2411604 2470104 2597112 2612571 2689866 2813538 3138177 3483428 3586488 3751384 3885362 4184236 4220307 4823208 5225142 5379732 5627076 5828043 6095999 6276354 6966856 7770724 7837713 8368472 8440614 9414531 10450284 10759464 11254152 11656086 12191998 12552708 13598767 15541448 15675426 16881228 17484129 18287997 18829062 20900568 23312172 24383996 25105416 25254853 27197534 31350852 33762456 34968258 36575994 37658124 40796301 46624344 48767992 50509706 54395068 54863991 62701704 69936516 73151988 75316248 75764559 81592602 101019412 108790136 109727982 122388903 139873032 146303976 151529118 163185204 176783971 202038824 219455964 227293677 244777806 303058236 326370408 353567942 438911928 454587354 489555612 530351913 606116472 707135884 909174708 979111224 1060703826 1414271768 1591055739 1818349416 2121407652 3182111478 4242815304 6364222956 12728445912
• Sum of all divisors σ(n): 44140917600
• Sum of proper divisors (its aliquot sum) s(n): 31412471688
• 12728445912 is an abundant number, because the sum of its proper divisors (31412471688) is greater than itself. Its abundance is 18684025776

Bases of 12728445912

• Binary: 1011110110101011001010101111011000₂
• Hexadecimal: 0x2F6ACABD8
• Base-36: 5UI6RQ0

Squares and roots of 12728445912

• 12728445912 squared (12728445912²) is 162013335334709511744
• 12728445912 cubed (12728445912³) is 2062177975830568436465432790528
• The square root of 12728445912 is 112820.4144293045
• The cube root of 12728445912 is 2334.8471800297

Scales and comparisons

• 12,728,445,912 seconds is equal to 404 years, 37 weeks, 4 days, 23 hours, 25 minutes, 12 seconds.
• To count from 1 to 12,728,445,912 would take you about eight hundred nine 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 12728445912 cubic inches would be around 194.6 feet tall.

Recreational maths with 12728445912

• 12728445912 backwards is 21954482721
• The number of decimal digits it has is: 11
• The sum of 12728445912's digits is 45
• More coming soon!