1272137628

Names of 1272137628

• Cardinal: 1272137628 can be written as One billion, two hundred seventy-two million, one hundred thirty-seven thousand, six hundred twenty-eight.

Scientific notation

• Scientific notation: 1.272137628 × 10⁹

Factors of 1272137628

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 129824

Divisors of 1272137628

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 12 19 38 43 57 76 86 114 129 172 228 258 516 817 1634 2451 3268 4902 9804 129757 259514 389271 519028 778542 1557084 2465383 4930766 5579551 7396149 9861532 11159102 14792298 16738653 22318204 29584596 33477306 66954612 106011469 212022938 318034407 424045876 636068814 1272137628
• Sum of all divisors σ(n): 3197237120
• Sum of proper divisors (its aliquot sum) s(n): 1925099492
• 1272137628 is an abundant number, because the sum of its proper divisors (1925099492) is greater than itself. Its abundance is 652961864

Bases of 1272137628

• Binary: 1001011110100110100011110011100₂
• Hexadecimal: 0x4BD3479C
• Base-36: L1EBOC

Squares and roots of 1272137628

• 1272137628 squared (1272137628²) is 1618334144573466384
• 1272137628 cubed (1272137628³) is 2058743759989098597479497152
• The square root of 1272137628 is 35667.0383968167
• The cube root of 1272137628 is 1083.5393791489

Scales and comparisons

• 1,272,137,628 seconds is equal to 40 years, 23 weeks, 2 days, 19 hours, 33 minutes, 48 seconds.
• To count from 1 to 1,272,137,628 would take you about eighty 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 1272137628 cubic inches would be around 90.3 feet tall.

Recreational maths with 1272137628

• 1272137628 backwards is 8267312721
• The number of decimal digits it has is: 10
• The sum of 1272137628's digits is 39
• More coming soon!