638146812352

Names of 638146812352

• Cardinal: 638146812352 can be written as Six hundred thirty-eight billion, one hundred forty-six million, eight hundred twelve thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 6.38146812352 × 10¹¹

Factors of 638146812352

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2139

Divisors of 638146812352

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 224 448 769 1361 1538 2722 3076 5383 5444 6152 9527 10766 10888 12304 19054 21532 21776 24608 38108 43064 43552 49216 76216 86128 87104 152432 172256 304864 344512 609728 1046609 1852321 2093218 3704642 4186436 7326263 7409284 8372872 12966247 14652526 14818568 16745744 25932494 29305052 29637136 33491488 51864988 58610104 59274272 66982976 103729976 117220208 118548544 207459952 234440416 414919904 468880832 829839808 1424434849 2848869698 5697739396 9971043943 11395478792 19942087886 22790957584 39884175772 45581915168 79768351544 91163830336 159536703088 319073406176 638146812352
• Sum of all divisors σ(n): 1450173284560
• Sum of proper divisors (its aliquot sum) s(n): 812026472208
• 638146812352 is an abundant number, because the sum of its proper divisors (812026472208) is greater than itself. Its abundance is 173879659856

Bases of 638146812352

• Binary: 1001010010010100100000111001100111000000₂
• Hexadecimal: 0x94948399C0
• Base-36: 855S4VR4

Squares and roots of 638146812352

• 638146812352 squared (638146812352²) is 407231354115018699771904
• 638146812352 cubed (638146812352³) is 259873390518287701228312247089758208
• The square root of 638146812352 is 798840.9180506465
• The cube root of 638146812352 is 8609.4128609503

Scales and comparisons

• 638,146,812,352 seconds is equal to 20,291 years, 4 weeks, 6 days, 11 hours, 25 minutes, 52 seconds.
• To count from 1 to 638,146,812,352 would take you about forty thousand, five hundred eighty-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 638146812352 cubic inches would be around 717.5 feet tall.

Recreational maths with 638146812352

• 638146812352 backwards is 253218641836
• The number of decimal digits it has is: 12
• The sum of 638146812352's digits is 49
• More coming soon!