642103355491

Names of 642103355491

• Cardinal: 642103355491 can be written as Six hundred forty-two billion, one hundred three million, three hundred fifty-five thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 6.42103355491 × 10¹¹

Factors of 642103355491

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 218

Divisors of 642103355491

• Number of divisors d(n): 72
• Complete list of divisors:
  1 13 37 41 127 169 481 533 1369 1517 1651 1681 2197 4699 5207 6253 6929 17797 19721 21463 21853 56129 61087 62197 67691 81289 90077 173863 192659 213487 231361 256373 279019 284089 729677 794131 808561 879983 2260219 2301289 2504567 2775331 3007693 3332849 3693157 7128383 7899019 9485801 10323703 10511293 11439779 29382847 29916757 32559371 36079303 92668979 102687247 123315413 136646809 292263703 381977011 388917841 423271823 469030939 1204696727 1334934211 3799428139 5055931933 15661057451 17354144743 49392565807 642103355491
• Sum of all divisors σ(n): 738526871040
• Sum of proper divisors (its aliquot sum) s(n): 96423515549
• 642103355491 is a deficient number, because the sum of its proper divisors (96423515549) is less than itself. Its deficiency is 545679839942

Bases of 642103355491

• Binary: 1001010110000000010101111010100001100011₂
• Hexadecimal: 0x958057A863
• Base-36: 86Z7RBZ7

Squares and roots of 642103355491

• 642103355491 squared (642103355491²) is 412296719132801519851081
• 642103355491 cubed (642103355491³) is 264737106813102235539683756723635771
• The square root of 642103355491 is 801313.5188495201
• The cube root of 642103355491 is 8627.1691492643

Scales and comparisons

• 642,103,355,491 seconds is equal to 20,416 years, 46 weeks, 5 days, 19 hours, 11 minutes, 31 seconds.
• To count from 1 to 642,103,355,491 would take you about forty thousand, eight hundred thirty-three 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 642103355491 cubic inches would be around 718.9 feet tall.

Recreational maths with 642103355491

• 642103355491 backwards is 194553301246
• The number of decimal digits it has is: 12
• The sum of 642103355491's digits is 43
• More coming soon!