1213611420

Names of 1213611420

• Cardinal: 1213611420 can be written as One billion, two hundred thirteen million, six hundred eleven thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.21361142 × 10⁹

Factors of 1213611420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 412810

Divisors of 1213611420

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 412793 825586 1238379 1651172 2063965 2476758 2889551 4127930 4953516 5779102 6191895 8255860 8668653 11558204 12383790 14447755 17337306 20226857 24767580 28895510 34674612 40453714 43343265 57791020 60680571 80907428 86686530 101134285 121361142 173373060 202268570 242722284 303402855 404537140 606805710 1213611420
• Sum of all divisors σ(n): 3952915344
• Sum of proper divisors (its aliquot sum) s(n): 2739303924
• 1213611420 is an abundant number, because the sum of its proper divisors (2739303924) is greater than itself. Its abundance is 1525692504

Bases of 1213611420

• Binary: 1001000010101100011110110011100₂
• Hexadecimal: 0x48563D9C
• Base-36: K2JWKC

Squares and roots of 1213611420

• 1213611420 squared (1213611420²) is 1472852678754416400
• 1213611420 cubed (1213611420³) is 1787470830913951118475288000
• The square root of 1213611420 is 34836.9260986097
• The cube root of 1213611420 is 1066.6613317875

Scales and comparisons

• 1,213,611,420 seconds is equal to 38 years, 30 weeks, 4 days, 10 hours, 17 minutes.
• To count from 1 to 1,213,611,420 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 1213611420 cubic inches would be around 88.9 feet tall.

Recreational maths with 1213611420

• 1213611420 backwards is 0241163121
• 1213611420 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1213611420's digits is 21
• More coming soon!