813138993304435908

Names of 813138993304435908

• Cardinal: 813138993304435908 can be written as Eight hundred thirteen quadrillion, one hundred thirty-eight trillion, nine hundred ninety-three billion, three hundred four million, four hundred thirty-five thousand, nine hundred eight.

Scientific notation

• Scientific notation: 8.13138993304435908 × 10¹⁷

Factors of 813138993304435908

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 20741225214393

Divisors of 813138993304435908

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 121 132 162 198 242 297 324 363 396 484 594 726 891 1089 1188 1452 1782 2178 3267 3564 4356 6534 9801 13068 19602 39204 20741225214377 41482450428754 62223675643131 82964900857508 124447351286262 186671026929393 228153477358147 248894702572524 373342053858786 456306954716294 560013080788179 684460432074441 746684107717572 912613909432588 1120026161576358 1368920864148882 1680039242364537 2053381296223323 2240052323152716 2509688250939617 2737841728297764 3360078484729074 4106762592446646 5019376501879234 6160143888669969 6720156969458148 7529064752818851 8213525184893292 10038753003758468 12320287777339938 15058129505637702 18480431666009907 22587194258456553 24640575554679876 30116259011275404 36960863332019814 45174388516913106 67761582775369659 73921726664039628 90348777033826212 135523165550739318 203284748326108977 271046331101478636 406569496652217954 813138993304435908
• Sum of all divisors σ(n): 2336519761624896078
• Sum of proper divisors (its aliquot sum) s(n): 1523380768320460170
• 813138993304435908 is an abundant number, because the sum of its proper divisors (1523380768320460170) is greater than itself. Its abundance is 710241775016024262

Bases of 813138993304435908

• Binary: 101101001000110110011001101100110000111011011111110011000100₂
• Hexadecimal: 0xB48D99B30EDFCC4
• Base-36: 66EHPSLET490

Squares and roots of 813138993304435908

• 813138993304435908 squared (813138993304435908²) is 661195022432151464421002510079784464
• 813138993304435908 cubed (813138993304435908³) is 537643454918383559621981708561285882140423087742133312
• The square root of 813138993304435908 is 901742198.9152087519
• The cube root of 813138993304435908 is 933372.3455804753

Scales and comparisons

• 813,138,993,304,435,908 seconds is equal to 25,855,304,783 years, 1 week, 4 days, 13 hours, 31 minutes, 48 seconds.
• To count from 1 to 813,138,993,304,435,908 would take you about seventy-seven billion, five hundred sixty-five million, nine hundred fourteen thousand, three hundred forty-nine 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 813138993304435908 cubic inches would be around 77781 feet tall.

Recreational maths with 813138993304435908

• 813138993304435908 backwards is 809534403399831318
• 813138993304435908 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 813138993304435908's digits is 81
• More coming soon!