642808950

Names of 642808950

• Cardinal: 642808950 can be written as Six hundred forty-two million, eight hundred eight thousand, nine hundred fifty.

Scientific notation

• Scientific notation: 6.4280895 × 10⁸

Factors of 642808950

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4639

Divisors of 642808950

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 19 21 25 30 35 38 42 49 50 57 70 75 95 98 105 114 133 147 150 175 190 210 245 266 285 294 350 399 475 490 525 570 665 735 798 931 950 1050 1225 1330 1425 1470 1862 1995 2450 2793 2850 3325 3675 3990 4603 4655 5586 6650 7350 9206 9310 9975 13809 13965 19950 23015 23275 27618 27930 32221 46030 46550 64442 69045 69825 87457 96663 115075 138090 139650 161105 174914 193326 225547 230150 262371 322210 345225 437285 451094 483315 524742 612199 676641 690450 805525 874570 966630 1127735 1224398 1311855 1353282 1611050 1836597 2186425 2255470 2416575 2623710 3060995 3383205 3673194 4285393 4372850 4833150 5638675 6121990 6559275 6766410 8570786 9182985 11277350 12856179 13118550 15304975 16916025 18365970 21426965 25712358 30609950 33832050 42853930 45914925 64280895 91829850 107134825 128561790 214269650 321404475 642808950
• Sum of all divisors σ(n): 1952464320
• Sum of proper divisors (its aliquot sum) s(n): 1309655370
• 642808950 is an abundant number, because the sum of its proper divisors (1309655370) is greater than itself. Its abundance is 666846420

Bases of 642808950

• Binary: 100110010100000111110001110110₂
• Hexadecimal: 0x26507C76
• Base-36: AMPMK6

Squares and roots of 642808950

• 642808950 squared (642808950²) is 413203346200102500
• 642808950 cubed (642808950³) is 265610809107374377917375000
• The square root of 642808950 is 25353.6772480837
• The cube root of 642808950 is 863.0328066883

Scales and comparisons

• 642,808,950 seconds is equal to 20 years, 22 weeks, 5 days, 22 hours, 2 minutes, 30 seconds.
• To count from 1 to 642,808,950 would take you about thirty 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 642808950 cubic inches would be around 71.9 feet tall.

Recreational maths with 642808950

• 642808950 backwards is 059808246
• 642808950 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 642808950's digits is 42
• More coming soon!