3998806749

Names of 3998806749

• Cardinal: 3998806749 can be written as Three billion, nine hundred ninety-eight million, eight hundred six thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 3.998806749 × 10⁹

Factors of 3998806749

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 375

Divisors of 3998806749

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 7 9 21 23 49 61 63 69 147 161 183 207 281 427 441 483 529 549 843 1127 1281 1403 1449 1587 1967 2529 2989 3381 3703 3843 4209 4761 5901 6463 8967 9821 10143 11109 12627 13769 17141 17703 19389 25921 26901 29463 32269 33327 41307 45241 51423 58167 68747 77763 88389 96807 119987 123921 135723 148649 154269 206241 225883 233289 290421 316687 359961 394243 407169 445947 618723 677649 839909 950061 1040543 1079883 1182729 1337841 1581181 2032947 2519727 2759701 2850183 3121629 3548187 4743543 7283801 7559181 8279103 9067589 9364887 14230629 19317907 21851403 24837309 27202767 57953721 63473123 65554209 81608301 173861163 190419369 444311861 571258107 1332935583 3998806749
• Sum of all divisors σ(n): 7164471132
• Sum of proper divisors (its aliquot sum) s(n): 3165664383
• 3998806749 is a deficient number, because the sum of its proper divisors (3165664383) is less than itself. Its deficiency is 833142366

Bases of 3998806749

• Binary: 11101110010110001111001011011101₂
• Hexadecimal: 0xEE58F2DD
• Base-36: 1U4SB19

Squares and roots of 3998806749

• 3998806749 squared (3998806749²) is 15990455415847949001
• 3998806749 cubed (3998806749³) is 63942741036476380023006607749
• The square root of 3998806749 is 63236.1190222805
• The cube root of 3998806749 is 1587.2431889453

Scales and comparisons

• 3,998,806,749 seconds is equal to 127 years, 7 weeks, 5 days, 11 hours, 39 minutes, 9 seconds.
• To count from 1 to 3,998,806,749 would take you about two hundred fifty-four 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 3998806749 cubic inches would be around 132.3 feet tall.

Recreational maths with 3998806749

• 3998806749 backwards is 9476088993
• 3998806749 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 3998806749's digits is 63
• More coming soon!