21248807888

Names of 21248807888

• Cardinal: 21248807888 can be written as Twenty-one billion, two hundred forty-eight million, eight hundred seven thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1248807888 × 10¹⁰

Factors of 21248807888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4173

Divisors of 21248807888

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 4153 8306 16612 29071 33224 45683 58142 66448 91366 116284 182732 232568 319781 365464 465136 639562 730928 1279124 2558248 5116496 17247409 34494818 68989636 120731863 137979272 189721499 241463726 275958544 379442998 482927452 758885996 965854904 1328050493 1517771992 1931709808 2656100986 3035543984 5312201972 10624403944 21248807888
• Sum of all divisors σ(n): 51340651488
• Sum of proper divisors (its aliquot sum) s(n): 30091843600
• 21248807888 is an abundant number, because the sum of its proper divisors (30091843600) is greater than itself. Its abundance is 8843035712

Bases of 21248807888

• Binary: 10011110010100001110001001111010000₂
• Hexadecimal: 0x4F28713D0
• Base-36: 9REZP3K

Squares and roots of 21248807888

• 21248807888 squared (21248807888²) is 451511836661131020544
• 21248807888 cubed (21248807888³) is 9594088276370408412336837251072
• The square root of 21248807888 is 145769.7084033579
• The cube root of 21248807888 is 2769.7773321687

Scales and comparisons

• 21,248,807,888 seconds is equal to 675 years, 33 weeks, 4 days, 6 hours, 38 minutes, 8 seconds.
• To count from 1 to 21,248,807,888 would take you about one thousand, three hundred fifty-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 21248807888 cubic inches would be around 230.8 feet tall.

Recreational maths with 21248807888

• 21248807888 backwards is 88870884212
• 21248807888 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21248807888's digits is 56
• More coming soon!