81164200

Names of 81164200

• Cardinal: 81164200 can be written as Eighty-one million, one hundred sixty-four thousand, two hundred.

Scientific notation

• Scientific notation: 8.11642 × 10⁷

Factors of 81164200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 123

Divisors of 81164200

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 13 19 20 25 26 31 38 40 50 52 53 62 65 76 95 100 104 106 124 130 152 155 190 200 212 247 248 260 265 310 325 380 403 424 475 494 520 530 589 620 650 689 760 775 806 950 988 1007 1060 1178 1235 1240 1300 1325 1378 1550 1612 1643 1900 1976 2014 2015 2120 2356 2470 2600 2650 2756 2945 3100 3224 3286 3445 3800 4028 4030 4712 4940 5035 5300 5512 5890 6175 6200 6572 6890 7657 8056 8060 8215 9880 10070 10075 10600 11780 12350 13091 13144 13780 14725 15314 16120 16430 17225 20140 20150 21359 23560 24700 25175 26182 27560 29450 30628 31217 32860 34450 38285 40280 40300 41075 42718 49400 50350 52364 58900 61256 62434 65455 65720 68900 76570 80600 82150 85436 100700 104728 106795 117800 124868 130910 137800 153140 156085 164300 170872 191425 201400 213590 249736 261820 306280 312170 327275 328600 382850 405821 427180 523640 533975 624340 654550 765700 780425 811642 854360 1067950 1248680 1309100 1531400 1560850 1623284 2029105 2135900 2618200 3121700 3246568 4058210 4271800 6243400 8116420 10145525 16232840 20291050 40582100 81164200
• Sum of all divisors σ(n): 224985600
• Sum of proper divisors (its aliquot sum) s(n): 143821400
• 81164200 is an abundant number, because the sum of its proper divisors (143821400) is greater than itself. Its abundance is 62657200

Bases of 81164200

• Binary: 100110101100111011110101000₂
• Hexadecimal: 0x4D677A8
• Base-36: 1CBMP4

Squares and roots of 81164200

• 81164200 squared (81164200²) is 6587627361640000
• 81164200 cubed (81164200³) is 534679504705621288000000
• The square root of 81164200 is 9009.1176038501
• The cube root of 81164200 is 432.9670408911

Scales and comparisons

• 81,164,200 seconds is equal to 2 years, 30 weeks, 1 day, 9 hours, 36 minutes, 40 seconds.
• To count from 1 to 81,164,200 would take you about three 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 81164200 cubic inches would be around 36.1 feet tall.

Recreational maths with 81164200

• 81164200 backwards is 00246118
• The number of decimal digits it has is: 8
• The sum of 81164200's digits is 22
• More coming soon!