6638197644

Names of 6638197644

• Cardinal: 6638197644 can be written as Six billion, six hundred thirty-eight million, one hundred ninety-seven thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 6.638197644 × 10⁹

Factors of 6638197644

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1376

Divisors of 6638197644

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 169 234 338 351 367 468 507 676 702 734 991 1014 1101 1404 1468 1521 1982 2028 2202 2973 3042 3303 3964 4404 4563 4771 5946 6084 6606 8919 9126 9542 9909 11892 12883 13212 14313 17838 18252 19084 19818 25766 26757 28626 35676 38649 39636 42939 51532 53514 57252 62023 77298 85878 107028 115947 124046 128817 154596 167479 171756 186069 231894 248092 257634 334958 347841 363697 372138 463788 502437 515268 558207 669916 695682 727394 744276 1004874 1091091 1116414 1391364 1454788 1507311 1674621 2009748 2182182 2232828 3014622 3273273 3349242 4364364 4521933 4728061 6029244 6546546 6698484 9043866 9456122 9819819 13093092 14184183 18087732 18912244 19639638 28368366 39279276 42552549 56736732 61464793 85105098 122929586 127657647 170210196 184394379 245859172 255315294 368788758 510630588 553183137 737577516 1106366274 1659549411 2212732548 3319098822 6638197644
• Sum of all divisors σ(n): 18705469440
• Sum of proper divisors (its aliquot sum) s(n): 12067271796
• 6638197644 is an abundant number, because the sum of its proper divisors (12067271796) is greater than itself. Its abundance is 5429074152

Bases of 6638197644

• Binary: 110001011101010101101101110001100₂
• Hexadecimal: 0x18BAADB8C
• Base-36: 31S7M30

Squares and roots of 6638197644

• 6638197644 squared (6638197644²) is 44065667960807150736
• 6638197644 cubed (6638197644³) is 292516613238716312354068065984
• The square root of 6638197644 is 81475.1351272277
• The cube root of 6638197644 is 1879.3891976063

Scales and comparisons

• 6,638,197,644 seconds is equal to 211 years, 3 weeks, 5 days, 23 hours, 47 minutes, 24 seconds.
• To count from 1 to 6,638,197,644 would take you about four hundred twenty-two 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 6638197644 cubic inches would be around 156.6 feet tall.

Recreational maths with 6638197644

• 6638197644 backwards is 4467918366
• 6638197644 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6638197644's digits is 54
• More coming soon!