28731123631872

Names of 28731123631872

• Cardinal: 28731123631872 can be written as Twenty-eight trillion, seven hundred thirty-one billion, one hundred twenty-three million, six hundred thirty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.8731123631872 × 10¹³

Factors of 28731123631872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1609862

Divisors of 28731123631872

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 127 128 144 183 192 244 254 256 288 366 381 384 488 508 549 576 732 762 768 976 1016 1098 1143 1152 1464 1524 1952 2032 2196 2286 2304 2928 3048 3904 4064 4392 4572 5856 6096 7747 7808 8128 8784 9144 11712 12192 15494 15616 16256 17568 18288 23241 23424 24384 30988 32512 35136 36576 46482 46848 48768 61976 69723 70272 73152 92964 97536 123952 139446 140544 146304 185928 247904 278892 292608 371856 495808 557784 743712 991616 1115568 1487424 1609669 1983232 2231136 2974848 3219338 4462272 4829007 5949696 6438676 8924544 9658014 12877352 14487021 17849088 19316028 25754704 28974042 38632056 51509408 57948084 77264112 98189809 103018816 115896168 154528224 196379618 204427963 206037632 231792336 294569427 309056448 392759236 408855926 412075264 463584672 589138854 613283889 618112896 785518472 817711852 883708281 927169344 1178277708 1226567778 1236225792 1571036944 1635423704 1767416562 1839851667 1854338688 2356555416 2453135556 3142073888 3270847408 3534833124 3679703334 3708677376 4713110832 4906271112 6284147776 6541694816 7069666248 7359406668 9426221664 9812542224 12470105743 12568295552 13083389632 14139332496 14718813336 18852443328 19625084448 24940211486 25136591104 26166779264 28278664992 29437626672 37410317229 37704886656 39250168896 49880422972 52333558528 56557329984 58875253344 74820634458 75409773312 78500337792 99760845944 112230951687 113114659968 117750506688 149641268916 157000675584 199521691888 224461903374 226229319936 235501013376 299282537832 399043383776 448923806748 471002026752 598565075664 798086767552 897847613496 1197130151328 1596173535104 1795695226992 2394260302656 3192347070208 3591390453984 4788520605312 7182780907968 9577041210624 14365561815936 28731123631872
• Sum of all divisors σ(n): 84859948060160
• Sum of proper divisors (its aliquot sum) s(n): 56128824428288
• 28731123631872 is an abundant number, because the sum of its proper divisors (56128824428288) is greater than itself. Its abundance is 27397700796416

Bases of 28731123631872

• Binary: 110100010000101111100011010110000011100000000₂
• Hexadecimal: 0x1A217C6B0700
• Base-36: A6MW970G0

Squares and roots of 28731123631872

• 28731123631872 squared (28731123631872²) is 825477465149913703774224384
• 28731123631872 cubed (28731123631872³) is 23716895106546480921729076837529941966848
• The square root of 28731123631872 is 5360142.1279544445
• The cube root of 28731123631872 is 30627.9223224945

Scales and comparisons

• 28,731,123,631,872 seconds is equal to 913,560 years, 44 weeks, 5 days, 3 hours, 31 minutes, 12 seconds.
• To count from 1 to 28,731,123,631,872 would take you about two million, two hundred eighty-three thousand, nine 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 28731123631872 cubic inches would be around 2552.3 feet tall.

Recreational maths with 28731123631872

• 28731123631872 backwards is 27813632113782
• The number of decimal digits it has is: 14
• The sum of 28731123631872's digits is 54
• More coming soon!