81744675372

Names of 81744675372

• Cardinal: 81744675372 can be written as Eighty-one billion, seven hundred forty-four million, six hundred seventy-five thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 8.1744675372 × 10¹⁰

Factors of 81744675372

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 930

Divisors of 81744675372

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 9 12 17 18 31 34 36 51 62 68 93 102 124 153 186 204 279 289 306 372 527 558 578 612 867 877 1054 1116 1156 1581 1734 1754 2108 2601 2631 3162 3468 3508 4743 4913 5202 5262 6324 7893 8959 9486 9826 10404 10524 14739 14909 15786 17918 18972 19652 26877 27187 29478 29818 31572 35836 44217 44727 53754 54374 58956 59636 80631 81561 83521 88434 89454 107508 108748 134181 152303 161262 163122 167042 176868 178908 244683 250563 253453 268362 304606 322524 326244 334084 456909 462179 489366 501126 506906 536724 609212 751689 760359 913818 924358 978732 1002252 1013812 1370727 1386537 1503378 1520718 1827636 1848716 2281077 2589151 2741454 2773074 3006756 3041436 4159611 4308701 4562154 5178302 5482908 5546148 7767453 7857043 8319222 8617402 9124308 10356604 12926103 15534906 15714086 16638444 17234804 23302359 23571129 25852206 31069812 31428172 38778309 46604718 47142258 51704412 70713387 73247917 77556618 93209436 94284516 133569731 141426774 146495834 155113236 219743751 267139462 282853548 292991668 400709193 439487502 534278924 659231253 801418386 878975004 1202127579 1318462506 1602836772 2270685427 2404255158 2636925012 4541370854 4808510316 6812056281 9082741708 13624112562 20436168843 27248225124 40872337686 81744675372
• Sum of all divisors σ(n): 226887309376
• Sum of proper divisors (its aliquot sum) s(n): 145142634004
• 81744675372 is an abundant number, because the sum of its proper divisors (145142634004) is greater than itself. Its abundance is 63397958632

Bases of 81744675372

• Binary: 1001100001000010111001100001000101100₂
• Hexadecimal: 0x13085CC22C
• Base-36: 11JWO370

Squares and roots of 81744675372

• 81744675372 squared (81744675372²) is 6682191951673663338384
• 81744675372 cubed (81744675372³) is 546233611862954721678217867078848
• The square root of 81744675372 is 285910.2575494627
• The cube root of 81744675372 is 4339.9676385561

Scales and comparisons

• 81,744,675,372 seconds is equal to 2,599 years, 11 weeks, 5 days, 22 hours, 16 minutes, 12 seconds.
• To count from 1 to 81,744,675,372 would take you about five thousand, one hundred ninety-eight 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 81744675372 cubic inches would be around 361.7 feet tall.

Recreational maths with 81744675372

• 81744675372 backwards is 27357644718
• The number of decimal digits it has is: 11
• The sum of 81744675372's digits is 54
• More coming soon!