29891918672

Names of 29891918672

• Cardinal: 29891918672 can be written as Twenty-nine billion, eight hundred ninety-one million, nine hundred eighteen thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.9891918672 × 10¹⁰

Factors of 29891918672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 127242

Divisors of 29891918672

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 191 308 382 616 764 1232 1337 1528 2101 2674 3056 4202 5348 8404 10696 14707 16808 21392 29414 33616 58828 117656 127031 235312 254062 508124 889217 1016248 1397341 1778434 2032496 2794682 3556868 5589364 7113736 9781387 11178728 14227472 19562774 22357456 24262921 39125548 48525842 78251096 97051684 156502192 169840447 194103368 266892131 339680894 388206736 533784262 679361788 1067568524 1358723576 1868244917 2135137048 2717447152 3736489834 4270274096 7472979668 14945959336 29891918672
• Sum of all divisors σ(n): 72585068544
• Sum of proper divisors (its aliquot sum) s(n): 42693149872
• 29891918672 is an abundant number, because the sum of its proper divisors (42693149872) is greater than itself. Its abundance is 12801231200

Bases of 29891918672

• Binary: 11011110101101100100111101101010000₂
• Hexadecimal: 0x6F5B27B50
• Base-36: DQCVK28

Squares and roots of 29891918672

• 29891918672 squared (29891918672²) is 893526801893462243584
• 29891918672 cubed (29891918672³) is 26709230493451628993715581800448
• The square root of 29891918672 is 172892.7953154787
• The cube root of 29891918672 is 3103.4965289667

Scales and comparisons

• 29,891,918,672 seconds is equal to 950 years, 24 weeks, 3 days, 6 hours, 44 minutes, 32 seconds.
• To count from 1 to 29,891,918,672 would take you about one thousand, nine hundred 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 29891918672 cubic inches would be around 258.6 feet tall.

Recreational maths with 29891918672

• 29891918672 backwards is 27681919892
• The number of decimal digits it has is: 11
• The sum of 29891918672's digits is 62
• More coming soon!