820809915912

Names of 820809915912

• Cardinal: 820809915912 can be written as Eight hundred twenty billion, eight hundred nine million, nine hundred fifteen thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 8.20809915912 × 10¹¹

Factors of 820809915912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 962

Divisors of 820809915912

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 97 108 126 162 168 189 194 216 243 252 291 324 378 388 486 504 567 582 648 679 729 756 776 853 873 972 1134 1164 1358 1458 1512 1701 1706 1746 1944 2037 2187 2268 2328 2559 2619 2716 2916 3402 3412 3492 4074 4374 4536 5103 5118 5238 5432 5832 5971 6111 6561 6804 6824 6984 7677 7857 8148 8748 10206 10236 10476 11942 12222 13122 13608 15309 15354 15714 16296 17496 17913 18333 19683 20412 20472 20952 23031 23571 23884 24444 26244 30618 30708 31428 35826 36666 39366 40824 45927 46062 47142 47768 48888 52488 53739 54999 59049 61236 61416 62856 69093 70713 71652 73332 78732 82741 91854 92124 94284 107478 109998 118098 122472 137781 138186 141426 143304 146664 157464 161217 164997 165482 177147 183708 184248 188568 207279 212139 214956 219996 236196 248223 275562 276372 282852 322434 329994 330964 354294 367416 413343 414558 424278 429912 439992 472392 483651 494991 496446 551124 552744 565704 579187 621837 636417 644868 659988 661928 708588 744669 826686 829116 848556 967302 989982 992892 1102248 1158374 1240029 1243674 1272834 1289736 1319976 1417176 1450953 1484973 1489338 1653372 1658232 1697112 1737561 1865511 1909251 1934604 1979964 1985784 2234007 2316748 2480058 2487348 2545668 2901906 2969946 2978676 3306744 3475122 3731022 3818502 3869208 3959928 4352859 4454919 4468014 4633496 4960116 4974696 5091336 5212683 5596533 5727753 5803812 5939892 5957352 6702021 6950244 7462044 7637004 8705718 8909838 8936028 9920232 10425366 11193066 11455506 11607624 11879784 13058577 13364757 13404042 13900488 14924088 15274008 15638049 16789599 17183259 17411436 17819676 17872056 20106063 20850732 22386132 22911012 26117154 26729514 26808084 31276098 33579198 34366518 34822872 35639352 39175731 40094271 40212126 41701464 44772264 45822024 46914147 50368797 52234308 53459028 53616168 60318189 62552196 67158396 68733036 78351462 80188542 80424252 93828294 100737594 104468616 106918056 117527193 120282813 120636378 125104392 134316792 137466072 140742441 151106391 156702924 160377084 160848504 180954567 187656588 201475188 235054386 240565626 241272756 281484882 302212782 313405848 320754168 352581579 361909134 375313176 402950376 422227323 470108772 481131252 482545512 542863701 562969764 604425564 705163158 723818268 844454646 940217544 962262504 1057744737 1085727402 1125939528 1208851128 1266681969 1410326316 1447636536 1628591103 1688909292 2115489474 2171454804 2533363938 2820652632 3257182206 3377818584 3800045907 4230978948 4342909608 4885773309 5066727876 6514364412 7600091814 8461957896 9771546618 10133455752 11400137721 13028728824 14657319927 15200183628 19543093236 22800275442 29314639854 30400367256 34200413163 39086186472 45600550884 58629279708 68400826326 91201101768 102601239489 117258559416 136801652652 205202478978 273603305304 410404957956 820809915912
• Sum of all divisors σ(n): 2668636588800
• Sum of proper divisors (its aliquot sum) s(n): 1847826672888
• 820809915912 is an abundant number, because the sum of its proper divisors (1847826672888) is greater than itself. Its abundance is 1027016756976

Bases of 820809915912

• Binary: 1011111100011100000101010101111000001000₂
• Hexadecimal: 0xBF1C155E08
• Base-36: AH2P14I0

Squares and roots of 820809915912

• 820809915912 squared (820809915912²) is 673728918059464510791744
• 820809915912 cubed (820809915912³) is 553003376579871803318719609183830528
• The square root of 820809915912 is 905985.6046935845
• The cube root of 820809915912 is 9362.9822080159

Scales and comparisons

• 820,809,915,912 seconds is equal to 26,099 years, 11 weeks, 1 day, 18 hours, 25 minutes, 12 seconds.
• To count from 1 to 820,809,915,912 would take you about fifty-two 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 820809915912 cubic inches would be around 780.2 feet tall.

Recreational maths with 820809915912

• 820809915912 backwards is 219519908028
• 820809915912 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 820809915912's digits is 54
• More coming soon!