1621321768512

Names of 1621321768512

• Cardinal: 1621321768512 can be written as One trillion, six hundred twenty-one billion, three hundred twenty-one million, seven hundred sixty-eight thousand, five hundred twelve.

Scientific notation

• Scientific notation: 1.621321768512 × 10¹²

Factors of 1621321768512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 135112

Divisors of 1621321768512

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 136 144 153 192 204 272 288 306 408 544 576 612 816 1088 1224 1237 1632 2448 2474 3264 3711 4896 4948 7422 9792 9896 11133 14844 19792 21029 22266 29688 39584 42058 44532 59376 63087 79168 84116 89064 118752 126174 133853 168232 178128 189261 237504 252348 267706 336464 356256 378522 401559 504696 535412 672928 712512 757044 803118 1009392 1070824 1204677 1345856 1514088 1606236 2018784 2141648 2275501 2409354 3028176 3212472 4037568 4283296 4551002 4818708 6056352 6424944 6826503 8566592 9102004 9637416 12112704 12849888 13653006 18204008 19274832 20479509 25699776 27306012 36408016 38549664 40959018 54612024 72816032 77099328 81918036 109224048 145632064 163836072 165576161 218448096 327672144 331152322 436896192 496728483 655344288 662304644 993456966 1310688576 1324609288 1490185449 1986913932 2649218576 2814794737 2980370898 3973827864 5298437152 5629589474 5960741796 7947655728 8444384211 10596874304 11259178948 11921483592 15895311456 16888768422 22518357896 23842967184 25333152633 31790622912 33777536844 45036715792 47685934368 50666305266 67555073688 90073431584 95371868736 101332610532 135110147376 180146863168 202665221064 270220294752 405330442128 540440589504 810660884256 1621321768512
• Sum of all divisors σ(n): 4924606986936
• Sum of proper divisors (its aliquot sum) s(n): 3303285218424
• 1621321768512 is an abundant number, because the sum of its proper divisors (3303285218424) is greater than itself. Its abundance is 1681963449912

Bases of 1621321768512

• Binary: 10111100101111110010011101101111001000000₂
• Hexadecimal: 0x1797E4EDE40
• Base-36: KOTP4B40

Squares and roots of 1621321768512

• 1621321768512 squared (1621321768512²) is 2628684277050879314694144
• 1621321768512 cubed (1621321768512³) is 4261943040927819826304588138449993728
• The square root of 1621321768512 is 1273311.3399762055
• The cube root of 1621321768512 is 11747.7962210981

Scales and comparisons

• 1,621,321,768,512 seconds is equal to 51,553 years, 6 days, 5 hours, 55 minutes, 12 seconds.
• To count from 1 to 1,621,321,768,512 would take you about one hundred twenty-eight thousand, eight hundred eighty-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 1621321768512 cubic inches would be around 979 feet tall.

Recreational maths with 1621321768512

• 1621321768512 backwards is 2158671231261
• The number of decimal digits it has is: 13
• The sum of 1621321768512's digits is 45
• More coming soon!