51451645664720

Names of 51451645664720

• Cardinal: 51451645664720 can be written as Fifty-one trillion, four hundred fifty-one billion, six hundred forty-five million, six hundred sixty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 5.145164566472 × 10¹³

Factors of 51451645664720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 64386822

Divisors of 51451645664720

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 1427 2854 5708 7135 9989 11416 14270 19978 22832 28540 39956 49945 57080 79912 99890 114160 159824 199780 399560 799120 64385381 128770762 257541524 321926905 450697667 515083048 643853810 901395334 1030166096 1287707620 1802790668 2253488335 2575415240 3605581336 4506976670 5150830480 7211162672 9013953340 18027906680 36055813360 91877938687 183755877374 367511754748 459389693435 643145570809 735023509496 918779386870 1286291141618 1470047018992 1837558773740 2572582283236 3215727854045 3675117547480 5145164566472 6431455708090 7350235094960 10290329132944 12862911416180 25725822832360 51451645664720
• Sum of all divisors σ(n): 136810180338048
• Sum of proper divisors (its aliquot sum) s(n): 85358534673328
• 51451645664720 is an abundant number, because the sum of its proper divisors (85358534673328) is greater than itself. Its abundance is 33906889008608

Bases of 51451645664720

• Binary: 1011101100101110000101000100000001110111010000₂
• Hexadecimal: 0x2ECB85101DD0
• Base-36: I8KK5DX3K

Squares and roots of 51451645664720

• 51451645664720 squared (51451645664720²) is 2647271841607900370652678400
• 51451645664720 cubed (51451645664720³) is 136206492772600457619793561716216386048000
• The square root of 51451645664720 is 7172980.2498487335
• The cube root of 51451645664720 is 37193.4464658521

Scales and comparisons

• 51,451,645,664,720 seconds is equal to 1,636,003 years, 9 weeks, 3 days, 3 hours, 45 minutes, 20 seconds.
• To count from 1 to 51,451,645,664,720 would take you about four million, ninety thousand and seven 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 51451645664720 cubic inches would be around 3099.5 feet tall.

Recreational maths with 51451645664720

• 51451645664720 backwards is 02746654615415
• 51451645664720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 51451645664720's digits is 56
• More coming soon!