1221494625

Names of 1221494625

• Cardinal: 1221494625 can be written as One billion, two hundred twenty-one million, four hundred ninety-four thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 1.221494625 × 10⁹

Factors of 1221494625

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 38

Divisors of 1221494625

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 5 9 13 15 17 25 39 45 51 65 75 85 117 125 153 195 221 225 255 289 325 375 425 585 663 765 867 975 1105 1125 1275 1445 1625 1989 2125 2601 2925 3315 3757 3825 4335 4875 4913 5525 6375 7225 9945 11271 13005 14625 14739 16575 18785 19125 21675 24565 27625 33813 36125 44217 49725 56355 63869 65025 73695 82875 83521 93925 108375 122825 169065 191607 221085 248625 250563 281775 319345 325125 368475 417605 469625 574821 614125 751689 845325 958035 1085773 1105425 1252815 1408875 1596725 1842375 2088025 2874105 3257319 3758445 4226625 4790175 5428865 5527125 6264075 7983625 9771957 10440125 14370525 16286595 18792225 23950875 27144325 31320375 48859785 71852625 81432975 93961125 135721625 244298925 407164875 1221494625
• Sum of all divisors σ(n): 2519534472
• Sum of proper divisors (its aliquot sum) s(n): 1298039847
• 1221494625 is an abundant number, because the sum of its proper divisors (1298039847) is greater than itself. Its abundance is 76545222

Bases of 1221494625

• Binary: 1001000110011101000011101100001₂
• Hexadecimal: 0x48CE8761
• Base-36: K78VA9

Squares and roots of 1221494625

• 1221494625 squared (1221494625²) is 1492049118903890625
• 1221494625 cubed (1221494625³) is 1822529978977088290025390625
• The square root of 1221494625 is 34949.8873388743
• The cube root of 1221494625 is 1068.9659048777

Scales and comparisons

• 1,221,494,625 seconds is equal to 38 years, 43 weeks, 4 days, 16 hours, 3 minutes, 45 seconds.
• To count from 1 to 1,221,494,625 would take you about seventy-seven 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 1221494625 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221494625

• 1221494625 backwards is 5264941221
• The number of decimal digits it has is: 10
• The sum of 1221494625's digits is 36
• More coming soon!