81076842

Names of 81076842

• Cardinal: 81076842 can be written as Eighty-one million, seventy-six thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 8.1076842 × 10⁷

Factors of 81076842

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 108

Divisors of 81076842

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 6 7 9 11 14 17 18 21 22 27 31 33 34 37 42 51 54 62 63 66 74 77 93 99 102 111 119 126 153 154 186 187 189 198 217 222 231 238 259 279 297 306 333 341 357 374 378 407 434 459 462 518 527 558 561 594 629 651 666 682 693 714 777 814 837 918 999 1023 1054 1071 1122 1147 1221 1258 1302 1309 1386 1554 1581 1674 1683 1887 1953 1998 2046 2079 2142 2294 2331 2387 2442 2618 2849 3069 3162 3213 3366 3441 3663 3689 3774 3906 3927 4158 4403 4662 4743 4774 5049 5661 5698 5797 5859 6138 6426 6882 6919 6993 7161 7326 7378 7854 8029 8547 8806 9207 9486 10098 10323 10989 11067 11322 11594 11718 11781 12617 13209 13838 13986 14229 14322 16058 16983 17094 17391 18414 19499 20646 20757 21483 21978 22134 23562 24087 25234 25641 26418 28458 30969 33201 33966 34782 35343 37851 38998 39627 40579 41514 42966 48174 48433 51282 52173 58497 61938 62271 64449 66402 70686 72261 75702 76923 79254 81158 88319 96866 99603 104346 113553 116994 118881 121737 124542 128898 136493 144522 145299 153846 156519 175491 176638 186813 199206 214489 216783 227106 237762 243474 264957 272986 290598 313038 340659 350982 365211 373626 409479 428978 433566 435897 526473 529914 643467 681318 730422 794871 818958 871794 1052946 1095633 1228437 1286934 1307691 1501423 1589742 1930401 2191266 2384613 2456874 2615382 3002846 3685311 3860802 4504269 4769226 5791203 7370622 9008538 11582406 13512807 27025614 40538421 81076842
• Sum of all divisors σ(n): 252149760
• Sum of proper divisors (its aliquot sum) s(n): 171072918
• 81076842 is an abundant number, because the sum of its proper divisors (171072918) is greater than itself. Its abundance is 89996076

Bases of 81076842

• Binary: 100110101010010001001101010₂
• Hexadecimal: 0x4D5226A
• Base-36: 1C9RAI

Squares and roots of 81076842

• 81076842 squared (81076842²) is 6573454308692964
• 81076842 cubed (81076842³) is 532954916380118668739688
• The square root of 81076842 is 9004.2679880155
• The cube root of 81076842 is 432.8116492583

Scales and comparisons

• 81,076,842 seconds is equal to 2 years, 30 weeks, 9 hours, 20 minutes, 42 seconds.
• To count from 1 to 81,076,842 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 81076842 cubic inches would be around 36.1 feet tall.

Recreational maths with 81076842

• 81076842 backwards is 24867018
• The number of decimal digits it has is: 8
• The sum of 81076842's digits is 36
• More coming soon!