29428612821

Names of 29428612821

• Cardinal: 29428612821 can be written as Twenty-nine billion, four hundred twenty-eight million, six hundred twelve thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 2.9428612821 × 10¹⁰

Factors of 29428612821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13505

Divisors of 29428612821

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 19 27 31 57 93 139 171 279 417 513 589 837 1251 1767 2641 3753 4309 5301 7923 12927 13313 15903 23769 38781 39939 71307 81871 116343 119817 245613 252947 359451 412703 736839 758841 1238109 1850507 2210517 2276523 3714327 5551521 6829569 7841357 11142981 16654563 23524071 35159633 49963689 57365717 70572213 105478899 172097151 211716639 316436697 516291453 949310091 1089948623 1548874359 3269845869 9809537607 29428612821
• Sum of all divisors σ(n): 47717376000
• Sum of proper divisors (its aliquot sum) s(n): 18288763179
• 29428612821 is a deficient number, because the sum of its proper divisors (18288763179) is less than itself. Its deficiency is 11139849642

Bases of 29428612821

• Binary: 11011011010000101001111111011010101₂
• Hexadecimal: 0x6DA14FED5
• Base-36: DIP1AZ9

Squares and roots of 29428612821

• 29428612821 squared (29428612821²) is 866043252568325578041
• 29428612821 cubed (29428612821³) is 25486451566072767284439608663661
• The square root of 29428612821 is 171547.6983844437
• The cube root of 29428612821 is 3087.3788904639

Scales and comparisons

• 29,428,612,821 seconds is equal to 935 years, 38 weeks, 2 days, 22 hours, 40 minutes, 21 seconds.
• To count from 1 to 29,428,612,821 would take you about one thousand, eight hundred seventy-one 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 29428612821 cubic inches would be around 257.3 feet tall.

Recreational maths with 29428612821

• 29428612821 backwards is 12821682492
• The number of decimal digits it has is: 11
• The sum of 29428612821's digits is 45
• More coming soon!