31921947019872

Names of 31921947019872

• Cardinal: 31921947019872 can be written as Thirty-one trillion, nine hundred twenty-one billion, nine hundred forty-seven million, nineteen thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 3.1921947019872 × 10¹³

Factors of 31921947019872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 174003312

Divisors of 31921947019872

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 32 36 39 42 48 49 52 56 63 72 78 84 91 96 98 104 112 117 126 144 147 156 168 182 196 208 224 234 252 273 288 294 312 336 364 392 416 441 468 504 546 588 624 637 672 728 784 819 882 936 1008 1092 1176 1248 1274 1456 1568 1638 1764 1872 1911 2016 2184 2352 2548 2912 3276 3528 3744 3822 4368 4704 5096 5733 6552 7056 7644 8736 10192 11466 13104 14112 15288 20384 22932 26208 30576 45864 61152 91728 183456 174003287 348006574 522009861 696013148 1044019722 1218023009 1392026296 1566029583 2088039444 2262042731 2436046018 2784052592 3132059166 3654069027 4176078888 4524085462 4872092036 5568105184 6264118332 6786128193 7308138054 8352157776 8526161063 9048170924 9744184072 10962207081 12528236664 13572256386 14616276108 15834299117 16704315552 17052322126 18096341848 19488368144 20358384579 21924414162 25056473328 25578483189 27144512772 29232552216 31668598234 34104644252 36192683696 38976736288 40716769158 43848828324 47502897351 50112946656 51156966378 54289025544 58465104432 63337196468 68209288504 72385367392 76735449567 81433538316 87697656648 95005794702 102313932756 108578051088 110840093819 116930208864 126674392936 136418577008 142508692053 153470899134 162867076632 175395313296 190011589404 204627865512 217156102176 221680187638 253348785872 272837154016 285017384106 306941798268 325734153264 332520281457 350790626592 380023178808 409255731024 443360375276 506697571744 570034768212 613883596536 651468306528 665040562914 760046357616 818511462048 886720750552 997560844371 1140069536424 1227767193072 1330081125828 1520092715232 1773441501104 1995121688742 2280139072848 2455534386144 2660162251656 3546883002208 3990243377484 4560278145696 5320324503312 7980486754968 10640649006624 15960973509936 31921947019872
• Sum of all divisors σ(n): 113721936911856
• Sum of proper divisors (its aliquot sum) s(n): 81799989891984
• 31921947019872 is an abundant number, because the sum of its proper divisors (81799989891984) is greater than itself. Its abundance is 49878042872112

Bases of 31921947019872

• Binary: 111010000100001101000010100000000101001100000₂
• Hexadecimal: 0x1D0868500A60
• Base-36: BBCQN1ZS0

Squares and roots of 31921947019872

• 31921947019872 squared (31921947019872²) is 1019010701539514861962896384
• 31921947019872 cubed (31921947019872³) is 32528805627226992490285133673466324942848
• The square root of 31921947019872 is 5649951.0634935591
• The cube root of 31921947019872 is 31722.1872356665

Scales and comparisons

• 31,921,947,019,872 seconds is equal to 1,015,019 years, 9 weeks, 9 hours, 31 minutes, 12 seconds.
• To count from 1 to 31,921,947,019,872 would take you about two million, five hundred thirty-seven thousand, five hundred forty-seven 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 31921947019872 cubic inches would be around 2643.5 feet tall.

Recreational maths with 31921947019872

• 31921947019872 backwards is 27891074912913
• 31921947019872 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 31921947019872's digits is 63
• More coming soon!