21150090225

Names of 21150090225

• Cardinal: 21150090225 can be written as Twenty-one billion, one hundred fifty million, ninety thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 2.1150090225 × 10¹⁰

Factors of 21150090225

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 440

Divisors of 21150090225

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 5 9 11 15 25 27 31 33 45 55 75 81 93 99 109 135 155 165 225 275 279 281 297 327 341 405 465 495 545 675 775 825 837 843 891 981 1023 1199 1395 1405 1485 1635 1705 2025 2325 2475 2511 2529 2725 2943 3069 3091 3379 3597 4185 4215 4455 4905 5115 5995 6975 7025 7425 7587 8175 8525 8711 8829 9207 9273 10137 10791 12555 12645 14715 15345 15455 16895 17985 20925 21075 22275 22761 24525 25575 26133 27621 27819 29975 30411 30629 32373 37169 37935 43555 44145 46035 46365 50685 53955 62775 63225 73575 76725 77275 78399 83457 84475 89925 91233 91887 95821 97119 111507 113805 130665 138105 139095 152055 153145 161865 185845 189675 217775 220725 230175 231825 235197 250371 253425 269775 273699 275661 287463 334521 336919 391995 417285 456165 459435 479105 485595 557535 569025 653325 690525 695475 705591 760275 765725 809325 826983 862389 929225 949499 1003563 1010757 1175985 1251855 1368495 1378305 1437315 1672605 1684595 1959975 2086425 2280825 2297175 2395525 2427975 2480949 2587167 2787675 2848497 3010689 3032271 3527955 4134915 4311945 4747495 5017815 5053785 5879925 6259275 6842475 6891525 7186575 7761501 8363025 8422975 8545491 9096813 10444489 12404745 12935835 14242485 15053445 15161355 17639775 20674575 21559725 23737475 25089075 25268925 25636473 27290439 31333467 38807505 42727455 45484065 52222445 62023725 64679175 71212425 75267225 75806775 76909419 94000401 128182365 136452195 156667335 194037525 213637275 227420325 261112225 282001203 384547095 470002005 640911825 682260975 783336675 846003609 1410006015 1922735475 2350010025 4230018045 7050030075 21150090225
• Sum of all divisors σ(n): 44680711680
• Sum of proper divisors (its aliquot sum) s(n): 23530621455
• 21150090225 is an abundant number, because the sum of its proper divisors (23530621455) is greater than itself. Its abundance is 2380531230

Bases of 21150090225

• Binary: 10011101100101001001100001111110001₂
• Hexadecimal: 0x4ECA4C3F1
• Base-36: 9PS7U29

Squares and roots of 21150090225

• 21150090225 squared (21150090225²) is 447326316525640550625
• 21150090225 cubed (21150090225³) is 9460991954534206171637430140625
• The square root of 21150090225 is 145430.7059220987
• The cube root of 21150090225 is 2765.4813975423

Scales and comparisons

• 21,150,090,225 seconds is equal to 672 years, 26 weeks, 2 days, 17 hours, 3 minutes, 45 seconds.
• To count from 1 to 21,150,090,225 would take you about one thousand, three hundred forty-five 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 21150090225 cubic inches would be around 230.5 feet tall.

Recreational maths with 21150090225

• 21150090225 backwards is 52209005112
• 21150090225 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21150090225's digits is 27
• More coming soon!