81023749492

Names of 81023749492

• Cardinal: 81023749492 can be written as Eighty-one billion, twenty-three million, seven hundred forty-nine thousand, four hundred ninety-two.

Scientific notation

• Scientific notation: 8.1023749492 × 10¹⁰

Factors of 81023749492

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 112

Divisors of 81023749492

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 14 19 28 38 41 43 49 76 82 86 98 133 164 172 196 266 287 301 343 532 574 602 686 779 817 931 1148 1204 1372 1558 1634 1681 1763 1849 1862 2009 2107 3116 3268 3362 3526 3698 3724 4018 4214 5453 5719 6517 6724 7052 7396 8036 8428 10906 11438 11767 12341 12943 13034 14063 14749 21812 22876 23534 24682 25886 26068 28126 29498 31939 33497 35131 38171 40033 47068 49364 51772 56252 58996 63878 66994 70262 72283 75809 76342 80066 82369 86387 90601 127756 133988 140524 144566 151618 152684 160132 164738 172774 181202 223573 234479 245917 267197 280231 289132 303236 329476 345548 362404 447146 468958 491834 505981 530663 534394 560462 576583 604709 634207 894292 937916 983668 1011962 1061326 1068788 1120924 1153166 1209418 1268414 1373377 1440371 1565011 1641353 1721419 2023924 2122652 2306332 2418836 2536828 2746754 2880742 3108169 3130022 3282706 3442838 3541867 3714641 5493508 5761484 6216338 6260044 6565412 6885676 7083734 7429282 9613639 10082597 10955077 11489471 12049933 12432676 14167468 14858564 19227278 20165194 21757183 21910154 22978942 24099866 24793069 26002487 38454556 40330388 43514366 43820308 45957884 48199732 49586138 52004974 59055211 67295473 70578179 87028732 99172276 104009948 118110422 134590946 141156358 152300281 236220844 269181892 282312716 304600562 413386477 471068311 494047253 609201124 826772954 942136622 988094506 1066101967 1653545908 1884273244 1976189012 2132203934 2893705339 4264407868 5787410678 11574821356 20255937373 40511874746 81023749492
• Sum of all divisors σ(n): 182651784000
• Sum of proper divisors (its aliquot sum) s(n): 101628034508
• 81023749492 is an abundant number, because the sum of its proper divisors (101628034508) is greater than itself. Its abundance is 20604285016

Bases of 81023749492

• Binary: 1001011011101011001000100110101110100₂
• Hexadecimal: 0x12DD644D74
• Base-36: 117ZG584

Squares and roots of 81023749492

• 81023749492 squared (81023749492²) is 6564847981742370258064
• 81023749492 cubed (81023749492³) is 531908598325755597471688928903488
• The square root of 81023749492 is 284646.7099616647
• The cube root of 81023749492 is 4327.1715423729

Scales and comparisons

• 81,023,749,492 seconds is equal to 2,576 years, 15 weeks, 5 days, 21 hours, 4 minutes, 52 seconds.
• To count from 1 to 81,023,749,492 would take you about five thousand, one hundred fifty-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 81023749492 cubic inches would be around 360.6 feet tall.

Recreational maths with 81023749492

• 81023749492 backwards is 29494732018
• 81023749492 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81023749492's digits is 49
• More coming soon!