641120490

Names of 641120490

• Cardinal: 641120490 can be written as Six hundred forty-one million, one hundred twenty thousand, four hundred ninety.

Scientific notation

• Scientific notation: 6.4112049 × 10⁸

Factors of 641120490

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 184

Divisors of 641120490

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 157 170 255 289 306 314 471 510 578 765 785 867 942 1413 1445 1530 1570 1734 2355 2601 2669 2826 2890 4335 4710 5202 5338 7065 8007 8670 13005 13345 14130 16014 24021 24649 26010 26690 40035 45373 48042 49298 73947 80070 90746 120105 123245 136119 147894 221841 226865 240210 246490 272238 369735 408357 419033 443682 453730 680595 739470 816714 838066 1109205 1257099 1361190 2041785 2095165 2218410 2514198 3771297 4083570 4190330 6285495 7123561 7542594 12570990 14247122 18856485 21370683 35617805 37712970 42741366 64112049 71235610 106853415 128224098 213706830 320560245 641120490
• Sum of all divisors σ(n): 1782085266
• Sum of proper divisors (its aliquot sum) s(n): 1140964776
• 641120490 is an abundant number, because the sum of its proper divisors (1140964776) is greater than itself. Its abundance is 499844286

Bases of 641120490

• Binary: 100110001101101011100011101010₂
• Hexadecimal: 0x2636B8EA
• Base-36: ALPFQI

Squares and roots of 641120490

• 641120490 squared (641120490²) is 411035482697840100
• 641120490 cubed (641120490³) is 263523270074625766853649000
• The square root of 641120490 is 25320.3572249683
• The cube root of 641120490 is 862.2765041583

Scales and comparisons

• 641,120,490 seconds is equal to 20 years, 20 weeks, 9 hours, 1 minute, 30 seconds.
• To count from 1 to 641,120,490 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 641120490 cubic inches would be around 71.9 feet tall.

Recreational maths with 641120490

• 641120490 backwards is 094021146
• The number of decimal digits it has is: 9
• The sum of 641120490's digits is 27
• More coming soon!