28438653155640

Names of 28438653155640

• Cardinal: 28438653155640 can be written as Twenty-eight trillion, four hundred thirty-eight billion, six hundred fifty-three million, one hundred fifty-five thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.843865315564 × 10¹³

Factors of 28438653155640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 113229282

Divisors of 28438653155640

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 20 21 23 24 26 28 30 35 39 40 42 46 52 56 60 65 69 70 78 84 91 92 104 105 115 120 130 138 140 156 161 168 182 184 195 210 230 260 273 276 280 299 312 322 345 364 390 420 455 460 483 520 546 552 598 644 690 728 780 805 840 897 910 920 966 1092 1196 1288 1365 1380 1495 1560 1610 1794 1820 1932 2093 2184 2392 2415 2730 2760 2990 3220 3588 3640 3864 4186 4485 4830 5460 5980 6279 6440 7176 8372 8970 9660 10465 10920 11960 12558 16744 17940 19320 20930 25116 31395 35880 41860 50232 62790 83720 125580 251160 113229229 226458458 339687687 452916916 566146145 679375374 792604603 905833832 1132292290 1358750748 1471979977 1585209206 1698438435 2264584580 2377813809 2604272267 2717501496 2943959954 3170418412 3396876870 3963023015 4415939931 4529169160 4755627618 5208544534 5887919908 6340836824 6793753740 7359899885 7812816801 7926046030 8831879862 9511255236 10303859839 10417089068 11775839816 11889069045 13021361335 13587507480 14719799770 15625633602 15852092060 17663759724 18229905869 19022510472 20607719678 20834178136 22079699655 23778138090 26042722670 29439599540 30911579517 31251267204 31704184120 33855539471 35327519448 36459811738 39064084005 41215439356 44159399310 47556276180 51519299195 52085445340 54689717607 58879199080 61823159034 62502534408 67711078942 72919623476 78128168010 82430878712 88318798620 91149529345 95112552360 101566618413 103038598390 104170890680 109379435214 123646318068 135422157884 145839246952 154557897585 156256336020 169277697355 176637597240 182299058690 203133236826 206077196780 218758870428 236988776297 247292636136 270844315768 273448588035 309115795170 312512672040 338555394710 364598117380 406266473652 412154393560 437517740856 473977552594 507833092065 546897176070 618231590340 677110789420 710966328891 729196234760 812532947304 947955105188 1015666184130 1093794352140 1184943881485 1236463180680 1354221578840 1421932657782 1895910210376 2031332368260 2187588704280 2369887762970 2843865315564 3554831644455 4062664736520 4739775525940 5687730631128 7109663288910 9479551051880 14219326577820 28438653155640
• Sum of all divisors σ(n): 109569661286400
• Sum of proper divisors (its aliquot sum) s(n): 81131008130760
• 28438653155640 is an abundant number, because the sum of its proper divisors (81131008130760) is greater than itself. Its abundance is 52692354975120

Bases of 28438653155640

• Binary: 110011101110101100011110100011011100100111000₂
• Hexadecimal: 0x19DD63D1B938
• Base-36: A2WJBTOOO

Squares and roots of 28438653155640

• 28438653155640 squared (28438653155640²) is 808756993306792930063809600
• 28438653155640 cubed (28438653155640³) is 22999959619850145119207200707600126144000
• The square root of 28438653155640 is 5332790.3723697971
• The cube root of 28438653155640 is 30523.6413157739

Scales and comparisons

• 28,438,653,155,640 seconds is equal to 904,261 years, 10 weeks, 4 days, 4 hours, 34 minutes.
• To count from 1 to 28,438,653,155,640 would take you about two million, two hundred sixty thousand, six hundred fifty-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 28438653155640 cubic inches would be around 2543.6 feet tall.

Recreational maths with 28438653155640

• 28438653155640 backwards is 04655135683482
• 28438653155640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 28438653155640's digits is 60
• More coming soon!